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Valleriani F, Di Pancrazio C, Spedicato M, Di Teodoro G, Malatesta D, Petrova T, Profeta F, Colaianni ML, Berjaoui S, Puglia I, Caporale M, Rossi E, Marcacci M, Luciani M, Sacchini F, Portanti O, Bencivenga F, Decaro N, Bonfante F, Lorusso A. A cell-adapted SARS-CoV-2 mutant, showing a deletion in the spike protein spanning the furin cleavage site, has reduced virulence at the lung level in K18-hACE2 mice. Virology 2024; 592:109997. [PMID: 38324940 DOI: 10.1016/j.virol.2024.109997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 01/05/2024] [Accepted: 01/17/2024] [Indexed: 02/09/2024]
Abstract
Here we investigated the virulence properties of a unique cell-adapted SARS-CoV-2 mutant showing a ten-amino acid deletion encompassing the furin cleavage site of the spike protein (Δ680SPRAARSVAS689; Δ680-689-B.1) in comparison to its parental strain (wt-B.1) and two Delta variants (AY.122 and AY.21) of concern. After intranasal inoculation, transgenic K18-hACE2 mice were monitored for 14 days for weight change, lethality, and clinical score; oral swabs were daily collected and tested for the presence of N protein subgenomic RNA. At 3 and 7 dpi mice were also sacrificed and organs collected for molecular, histopathological, and immune response profile investigations. The Δ680-689-B.1-infected mice exhibited reduced shedding, lower virulence at the lung level, and milder pulmonary lesions. In the lung, infection with Δ680-689-B.1 was associated with a significant lower expression of some cytokines at 3 dpi (IL-4, IL-27, and IL-28) and 7 dpi (IL-4, IL-27, IL-28, IFN-γ and IL-1α).
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Affiliation(s)
- Fabrizia Valleriani
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Chiara Di Pancrazio
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Massimo Spedicato
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Giovanni Di Teodoro
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Daniela Malatesta
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Tetyana Petrova
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Francesca Profeta
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | | | - Shadia Berjaoui
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Ilaria Puglia
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Marialuigia Caporale
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Emanuela Rossi
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Maurilia Marcacci
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Mirella Luciani
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Flavio Sacchini
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | - Ottavio Portanti
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy
| | | | - Nicola Decaro
- Department of Veterinary Medicine, University of Bari, Valenzano-Italy
| | - Francesco Bonfante
- IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy; Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro-Italy
| | - Alessio Lorusso
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e Molise (IZSAM), Teramo-Italy; IZSVe-IZSAM Joint FAO Reference Centre for Zoonotic Coronaviruses, Italy.
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Di Chiara C, Cantarutti A, Raffaella Petrara M, Bonfante F, Benetti E, Boracchini R, Bosa L, Carmona F, Cosma C, Cotugno N, Le Prevost M, Martini G, Meneghel A, Pagliari M, Palma P, Ruffoni E, Zin A, De Rossi A, Giaquinto C, Donà D, Padoan A. Stronger and durable SARS-CoV-2 immune response to mRNA vaccines in 5-11 years old children with prior COVID-19. Vaccine 2024; 42:263-270. [PMID: 38071105 DOI: 10.1016/j.vaccine.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/08/2023] [Accepted: 12/01/2023] [Indexed: 01/01/2024]
Abstract
BACKGROUND AND OBJECTIVES mRNA vaccines elicit a durable humoral response to SARS-CoV-2 in adults, whereas evidence in children is scarce. This study aimed to assess the early and long-term immune response to the mRNA vaccine in children with or without previous SARS-CoV-2 infection. METHODS In a multicentre prospective observational study, we profiled the immune response to the Pfizer BioNTech (BNT162b2) vaccine in 5-11-year-old children attending the University Pediatric Hospital of Padua and Bambino-Gesù Hospital in Rome (Italy) from December-2021 to February-2023. Blood samples were collected pre-, 1-, and 6-months after vaccination. Neutralizing antibodies (NAbs) and anti-spike-receptor-binding-domain (anti-S-RBD) IgG titers were analyzed through Plaque Reduction Neutralization Test (PRNT) and chemiluminescent immune-enzymatic assay (CLIA), respectively. Immune cell phenotypes were analyzed by flow cytometry. RESULTS Sixty children (26 [43 %] female, median age = 8 years [IQR = 7-10.7]) were enrolled in the study, including 46 children with a laboratory-confirmed previous COVID-19 (SARS-CoV-2-recovered) and 14 SARS-CoV-2-naïve participants defined as the absence of antigen-specific antibodies before vaccination. SARS-CoV-2-recovered participants recorded higher anti-S-RBD IgG and Wild-type and Omicron BA.2 NAbs titers than SARS-CoV-2-naïve participants at both 1- and 6-months after vaccination. Antibody titers correlated with T (Tregs) and B (Bregs) regulatory cell frequencies in SARS-CoV-2-recovered children. Both SARS-CoV-2-recovered and SARS-CoV-2-naïve participants decreased antibody titers by approximately 100 to 250 % from 1 to 6 months. While children with immunocompromising underlying conditions developed immune responses comparable to those of healthy children, solid organ transplant recipients exhibited lower levels of NAbs and anti-S-RBD IgG titers, as well as reduced frequencies of Tregs and Bregs. CONCLUSIONS mRNA vaccination triggered a higher production of specific anti-SARS-CoV-2 antibodies along with increased levels of regulatory cells in children with previous SARS-CoV-2 infection up to the following 6 months. These findings provide insights into boosting pre-existing immunity.
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Affiliation(s)
- Costanza Di Chiara
- Department for Women's and Children's Health, University of Padova, Via Giustiniani, 3 - 35128 Padua, Italy; Penta - Child Health Research, Corso Stati Uniti, 4 - 35127 Padua, Italy.
| | - Anna Cantarutti
- Department of Statistics and Quantitative Methods, Division of Biostatistics, Epidemiology and Public Health, Laboratory of Healthcare Research and Pharmacoepidemiology, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1 - 20126 Milan, Italy.
| | - Maria Raffaella Petrara
- Oncology and Immunology Section, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani, 2 - 35124 Padua, Italy.
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10 - 35020 Legnaro (Padua), Italy.
| | - Elisa Benetti
- Department of Medicine-DIMED, University of Padova, Via Giustiniani 2, 35128 Padua, Italy.
| | - Riccardo Boracchini
- Department of Statistics and Quantitative Methods, Division of Biostatistics, Epidemiology and Public Health, Laboratory of Healthcare Research and Pharmacoepidemiology, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1 - 20126 Milan, Italy.
| | - Luca Bosa
- Department for Women's and Children's Health, University of Padova, Via Giustiniani, 3 - 35128 Padua, Italy.
| | - Francesco Carmona
- Immunology and Diagnostic Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Via Gattamelata, 64 - 35128 Padua, Italy.
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padova, Via Giambattista Belzoni, 160 - 35121 Padua, Italy.
| | - Nicola Cotugno
- Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; Department of Systems Medicine, University of Rome "Tor Vergata", Piazza Sant'Onofrio, 4 - 00165 Rome, Italy.
| | - Marthe Le Prevost
- Medical Research Council Clinical Trials Unit at University College London, 90 High Holborn, WC1V 6LJ London, United Kingdom.
| | - Giorgia Martini
- Department for Women's and Children's Health, University of Padova, Via Giustiniani, 3 - 35128 Padua, Italy.
| | - Alessandra Meneghel
- Department for Women's and Children's Health, University of Padova, Via Giustiniani, 3 - 35128 Padua, Italy.
| | - Matteo Pagliari
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10 - 35020 Legnaro (Padua), Italy.
| | - Paolo Palma
- Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; Department of Systems Medicine, University of Rome "Tor Vergata", Piazza Sant'Onofrio, 4 - 00165 Rome, Italy.
| | - Elena Ruffoni
- Immunology and Diagnostic Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Via Gattamelata, 64 - 35128 Padua, Italy.
| | - Annachiara Zin
- Department for Women's and Children's Health, University of Padova, Via Giustiniani, 3 - 35128 Padua, Italy.
| | - Anita De Rossi
- Oncology and Immunology Section, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani, 2 - 35124 Padua, Italy; Immunology and Diagnostic Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Via Gattamelata, 64 - 35128 Padua, Italy.
| | - Carlo Giaquinto
- Department for Women's and Children's Health, University of Padova, Via Giustiniani, 3 - 35128 Padua, Italy; Penta - Child Health Research, Corso Stati Uniti, 4 - 35127 Padua, Italy.
| | - Daniele Donà
- Department for Women's and Children's Health, University of Padova, Via Giustiniani, 3 - 35128 Padua, Italy; Penta - Child Health Research, Corso Stati Uniti, 4 - 35127 Padua, Italy.
| | - Andrea Padoan
- Department of Medicine-DIMED, University of Padova, Via Giustiniani 2, 35128 Padua, Italy.
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Bianco A, Bortolami A, Miccolupo A, Sottili R, Ghergo P, Castellana S, Del Sambro L, Capozzi L, Pagliari M, Bonfante F, Ridolfi D, Bulzacchelli C, Giannico A, Parisi A. SARS-CoV-2 in Animal Companions: A Serosurvey in Three Regions of Southern Italy. Life (Basel) 2023; 13:2354. [PMID: 38137955 PMCID: PMC10745004 DOI: 10.3390/life13122354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/06/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Several animal species have been found to be susceptible to SARS-CoV-2 infection. The occurrence of infection in dogs and cats living in close contact with owners deserves particular attention from public health authorities in a One Health approach. In this study, we conducted serological screening to identify SARS-CoV-2 exposure in the sera from dogs and cats in three regions of southern Italy sampled during the years 2021 and 2022. We collected 100 serum samples in 2021 (89 from dogs and 11 from cats) and 640 in 2022 (577 from dogs and 63 from cats). Overall, the ELISA positivity rate was found to be 2.7% (20/740), with higher seroprevalence in dogs. Serum neutralization tests confirmed positivity only in two samples collected from dogs, and the assays, performed with serologically distinct SARS-CoV-2 variants, showed variant-specific positivity. This paper shows that monitoring SARS-CoV-2 exposure in animals might be affected by the viral antigenic evolution, which requires continuous updates to the serological tests used. Serological surveys are useful in understanding the true extent of exposure occurring in specific animal populations, not suffering the same limitations as molecular tests, and could help in identifying the infecting virus if tests able to characterize the immune response are used. The use of variant-specific validated serological methods should always be considered in serosurvey studies in order to determine the real impact of emerging variants on animal populations and its implications for veterinary and human health, as well as to identify potential reservoirs of the virus and its evolutionary changes.
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Affiliation(s)
- Angelica Bianco
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Alessio Bortolami
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell’Università 10, 35020 Legnaro, Italy; (A.B.); (M.P.); (F.B.)
| | - Angela Miccolupo
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Roldano Sottili
- ACV Triggiano Laboratorio di Analisi Cliniche Veterinarie, Via Suor Marcella Arosio 8, 70019 Triggiano, Italy; (R.S.)
| | - Paola Ghergo
- ACV Triggiano Laboratorio di Analisi Cliniche Veterinarie, Via Suor Marcella Arosio 8, 70019 Triggiano, Italy; (R.S.)
| | - Stefano Castellana
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Laura Del Sambro
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Loredana Capozzi
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Matteo Pagliari
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell’Università 10, 35020 Legnaro, Italy; (A.B.); (M.P.); (F.B.)
| | - Francesco Bonfante
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell’Università 10, 35020 Legnaro, Italy; (A.B.); (M.P.); (F.B.)
| | - Donato Ridolfi
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Carmela Bulzacchelli
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Anna Giannico
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
| | - Antonio Parisi
- Istituto Zooprofilattico Sperimentale della Puglia e Basilicata, Via Manfredonia n. 20, 71121 Foggia, Italy; (A.B.); (S.C.); (L.D.S.); (L.C.); (D.R.); (C.B.); (A.G.); (A.P.)
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4
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Rota P, La Rocca P, Bonfante F, Pagliari M, Cirillo F, Piccoli M, Ghiroldi A, Franco V, Pappone C, Allevi P, Anastasia L. Interplay of Modified Sialic Acid Inhibitors and the Human Parainfluenza Virus 1 Hemagglutinin-Neuraminidase Active Site. ACS Med Chem Lett 2023; 14:1383-1388. [PMID: 37849540 PMCID: PMC10577888 DOI: 10.1021/acsmedchemlett.3c00291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/20/2023] [Indexed: 10/19/2023] Open
Abstract
In the search for effective antivirals against Paramyxoviridae, the dynamics of human parainfluenza virus type 1 hemagglutinin-neuraminidase (hPIV1-HN) inhibition offers a promising perspective. This study focuses on the potential of C5- and C4-modified 2,3-unsaturated sialic acid (DANA) inhibitors and highlights their interaction with the hPIV1-HN enzyme. We show that a strategic substitution, replacing the C5 isopropyl group in BCX 2798 with a trifluoroacetyl function, increases inhibitory potency 3- to 4-fold. At the same time, we explore the special properties of the catalytic site of hPIV1-HN, which harbors only small substituents and favors a C4 sulfonylamido function over a carbonyl function, in contrast to the C4 pocket of Newcastle disease virus hemagglutinin-neuraminidase (NDV-HN). Based on these findings, we present a newly identified potent inhibitor that has the preferred C5 trifluoroacetamido and C4 trifluorosulfonylamide groups. The results of this study pave the way for a deeper understanding of the C4 and C5 binding pockets of hPIV1-HN and promote the development of new, more selective inhibitors.
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Affiliation(s)
- Paola Rota
- Department
of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20133 Milan, Italy
- Institute
for Molecular and Translational Cardiology, San Donato Milanese, 20097 Milan, Italy
| | - Paolo La Rocca
- Institute
for Molecular and Translational Cardiology, San Donato Milanese, 20097 Milan, Italy
- Department
of Biomedical Sciences for Health, Università
degli Studi di Milano, 20133 Milan, Italy
| | - Francesco Bonfante
- Division
of Comparative Biomedical Sciences, Istituto
Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
| | - Matteo Pagliari
- Division
of Comparative Biomedical Sciences, Istituto
Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
- Division
of Pediatric Infectious Diseases, Department for Women’s and
Children’s Health, University of
Padua, 35128 Padua, Italy
| | - Federica Cirillo
- Institute
for Molecular and Translational Cardiology, San Donato Milanese, 20097 Milan, Italy
- Laboratory
of Stem Cells for Tissue Engineering, IRCCS
Policlinico San Donato, San Donato
Milanese, 20097 Milan Italy
| | - Marco Piccoli
- Institute
for Molecular and Translational Cardiology, San Donato Milanese, 20097 Milan, Italy
- Laboratory
of Stem Cells for Tissue Engineering, IRCCS
Policlinico San Donato, San Donato
Milanese, 20097 Milan Italy
| | - Andrea Ghiroldi
- Institute
for Molecular and Translational Cardiology, San Donato Milanese, 20097 Milan, Italy
- Laboratory
of Stem Cells for Tissue Engineering, IRCCS
Policlinico San Donato, San Donato
Milanese, 20097 Milan Italy
| | - Valentina Franco
- Division
of Clinical and Experimental Pharmacology, Department of Internal
Medicine and Therapeutics, University of
Pavia, 27100 Pavia, Italy
- IRCCS,
Mondino Foundation, 27100 Pavia, Italy
| | - Carlo Pappone
- Institute
for Molecular and Translational Cardiology, San Donato Milanese, 20097 Milan, Italy
- Arrhythmology
Department, IRCCS Policlinico San Donato, Piazza Malan 2, San Donato Milanese, 20097 Milan Italy
- Faculty of
Medicine, University of Vita-Salute San
Raffaele, 20132 Milan, Italy
| | - Pietro Allevi
- Department
of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Luigi Anastasia
- Institute
for Molecular and Translational Cardiology, San Donato Milanese, 20097 Milan, Italy
- Laboratory
of Stem Cells for Tissue Engineering, IRCCS
Policlinico San Donato, San Donato
Milanese, 20097 Milan Italy
- Faculty of
Medicine, University of Vita-Salute San
Raffaele, 20132 Milan, Italy
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5
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Di Chiara C, Boracchini R, Sturniolo G, Barbieri A, Costenaro P, Cozzani S, De Pieri M, Liberati C, Zin A, Padoan A, Bonfante F, Kakkar F, Cantarutti A, Donà D, Giaquinto C. Clinical features of COVID-19 in Italian outpatient children and adolescents during Parental, Delta, and Omicron waves: a prospective, observational, cohort study. Front Pediatr 2023; 11:1193857. [PMID: 37635788 PMCID: PMC10450148 DOI: 10.3389/fped.2023.1193857] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 08/01/2023] [Indexed: 08/29/2023] Open
Abstract
Introduction COVID-19 features changed with the Omicron variant of SARS-CoV-2 in adults. This study aims to describe COVID-19 symptoms in children and adolescents during the Parental, Delta, and Omicron eras. Methods A single-centre, prospective observational study was conducted on individuals aged 0-20 years attending the University Hospital of Padua (Italy) from April 2020 to December 2022. COVID-19 cases were defined by positive SARS-CoV-2 molecular detection and/or serology; patient/family symptoms and virological positivity were considered to determine the infection onset. Variables were summarized and compared using appropriate tests of descriptive statistics. Results A total of 509 cases [46% female, median age eight years (IQR: 4-12)] were studied. Three-hundred-eighty-seven (76%), 52 (10%), and 70 (14%) subjects experienced COVID-19 during the Parental, Delta, and Omicron waves, respectively. All subjects developed an asymptomatic/mild COVID-19. Overall, the most frequent symptoms were fever (47%) and rhinitis (21%), which showed a significant increasing incidence from the Parental to Omicron waves (p < 0.001). Conversely, diarrhea was most common during the pre-Omicron eras (p = 0.03). Stratifying symptoms according to the age group, fever, rhinitis, and skin rashes were observed more frequently among infants/toddlers; conversely, fatigue was more common in children older than five years. The duration of symptoms was similar across different SARS-CoV-2 variants of concern (VOCs); conversely, the number of symptoms varied according to the age group (p < 0.0001). Discussion This study showed differences in COVID-19 clinical presentation among infants, children, and adolescents and confirmed Omicron infection is more likely to be associated with upper respiratory symptoms. However, further population-based studies are needed to support these findings. In addition, active surveillance will play a crucial role in assessing the disease severity of future VOCs.
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Affiliation(s)
- Costanza Di Chiara
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
- Penta – Child Health Research, Padua, Italy
| | - Riccardo Boracchini
- Division of Biostatistics, Epidemiology and Public Health, Laboratory of Healthcare Research and Pharmacoepidemiology, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
| | - Giulia Sturniolo
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Alessia Barbieri
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Paola Costenaro
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Sandra Cozzani
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Marica De Pieri
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Cecilia Liberati
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Annachiara Zin
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Andrea Padoan
- Department of Medicine-DIMED, University of Padua, Padua, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy
| | - Fatima Kakkar
- Division of Infectious Diseases, Department of Pediatrics, CHU Sainte-Justine, Montréal, QC, Canada
| | - Anna Cantarutti
- Division of Biostatistics, Epidemiology and Public Health, Laboratory of Healthcare Research and Pharmacoepidemiology, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
| | - Daniele Donà
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
- Penta – Child Health Research, Padua, Italy
| | - Carlo Giaquinto
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
- Penta – Child Health Research, Padua, Italy
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6
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Moreno A, Bonfante F, Bortolami A, Cassaniti I, Caruana A, Cottini V, Cereda D, Farioli M, Fusaro A, Lavazza A, Lecchini P, Lelli D, Maroni Ponti A, Nassuato C, Pastori A, Rovida F, Ruocco L, Sordilli M, Baldanti F, Terregino C. Asymptomatic infection with clade 2.3.4.4b highly pathogenic avian influenza A(H5N1) in carnivore pets, Italy, April 2023. Euro Surveill 2023; 28:2300441. [PMID: 37650905 PMCID: PMC10472752 DOI: 10.2807/1560-7917.es.2023.28.35.2300441] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 08/31/2023] [Indexed: 09/01/2023] Open
Abstract
In April 2023, an outbreak of clade 2.3.4.4b highly pathogenic avian influenza A(H5N1) viruses carrying the T271A mammalian adaptive mutation in the PB2 protein was detected in a backyard poultry farm in Italy. Five domestic dogs and one cat living on the premises had seroconverted in the absence of clinical signs. Virological and serological monitoring of individuals exposed to the virus proved the absence of human transmission, however, asymptomatic influenza A(H5N1) infections in mammalian pets may have important public health implications.
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Affiliation(s)
- Ana Moreno
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Brescia, Italy
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro (Padua), Italy
| | - Alessio Bortolami
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro (Padua), Italy
| | - Irene Cassaniti
- Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
- SC Microbiology and Virology, IRCCS Policlinico San Matteo, Pavia, Italy
| | - Anna Caruana
- Dipartimento di Igiene e Prevenzione Sanitaria-ATS Brescia, Brescia, Italy
| | - Vincenzo Cottini
- Dipartimento Veterinario e Sicurezza degli Alimenti di origine animale-ATS Brescia Direzione Generale, Brescia, Italy
| | - Danilo Cereda
- General Directorate of Welfare, Regione Lombardia, Milan, Italy
| | - Marco Farioli
- General Directorate of Welfare, Regione Lombardia, Milan, Italy
| | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro (Padua), Italy
| | - Antonio Lavazza
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Brescia, Italy
| | | | - Davide Lelli
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Brescia, Italy
| | | | - Claudia Nassuato
- Dipartimento Veterinario e Sicurezza degli Alimenti di origine animale-ATS Brescia Direzione Generale, Brescia, Italy
| | - Ambra Pastori
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro (Padua), Italy
| | - Francesca Rovida
- Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
- SC Microbiology and Virology, IRCCS Policlinico San Matteo, Pavia, Italy
| | - Luigi Ruocco
- Sanità Animale e Farmaci Veterinari, Ministero della Salute, Rome, Italy
| | - Marco Sordilli
- Sanità Animale e Farmaci Veterinari, Ministero della Salute, Rome, Italy
| | - Fausto Baldanti
- Department of Clinical, Surgical, Diagnostic and Paediatric Sciences, University of Pavia, Pavia, Italy
- SC Microbiology and Virology, IRCCS Policlinico San Matteo, Pavia, Italy
- These authors contributed equally to this work and share last authorship
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro (Padua), Italy
- These authors contributed equally to this work and share last authorship
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7
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Meseko C, Milani A, Inuwa B, Chinyere C, Shittu I, Ahmed J, Giussani E, Palumbo E, Zecchin B, Bonfante F, Maniero S, Angot A, Niang M, Fusaro A, Gobbo F, Terregino C, Olasoju T, Monne I, Muhammad M. The Evolution of Highly Pathogenic Avian Influenza A (H5) in Poultry in Nigeria, 2021-2022. Viruses 2023; 15:1387. [PMID: 37376688 DOI: 10.3390/v15061387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
In 2021, amidst the COVID-19 pandemic and global food insecurity, the Nigerian poultry sector was exposed to the highly pathogenic avian influenza (HPAI) virus and its economic challenges. Between 2021 and 2022, HPAI caused 467 outbreaks reported in 31 of the 37 administrative regions in Nigeria. In this study, we characterized the genomes of 97 influenza A viruses of the subtypes H5N1, H5N2, and H5N8, which were identified in different agro-ecological zones and farms during the 2021-2022 epidemic. The phylogenetic analysis of the HA genes showed a widespread distribution of the H5Nx clade 2.3.4.4b and similarity with the HPAI H5Nx viruses that have been detected in Europe since late 2020. The topology of the phylogenetic trees indicated the occurrence of several independent introductions of the virus into the country, followed by a regional evolution of the virus that was most probably linked to its persistent circulation in West African territories. Additional evidence of the evolutionary potential of the HPAI viruses circulating in this region is the identification in this study of a putative H5N1/H9N2 reassortant virus in a mixed-species commercial poultry farm. Our data confirm Nigeria as a crucial hotspot for HPAI virus introduction from the Eurasian territories and reveal a dynamic pattern of avian influenza virus evolution within the Nigerian poultry population.
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Affiliation(s)
- Clement Meseko
- Regional Laboratory for Animal Influenza & Transboundary Diseases, National Veterinary Research Institute (NVRI), Vom 930101, Nigeria
| | - Adelaide Milani
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Bitrus Inuwa
- Regional Laboratory for Animal Influenza & Transboundary Diseases, National Veterinary Research Institute (NVRI), Vom 930101, Nigeria
| | - Chinonyerem Chinyere
- Regional Laboratory for Animal Influenza & Transboundary Diseases, National Veterinary Research Institute (NVRI), Vom 930101, Nigeria
| | - Ismaila Shittu
- Regional Laboratory for Animal Influenza & Transboundary Diseases, National Veterinary Research Institute (NVRI), Vom 930101, Nigeria
| | - James Ahmed
- Regional Laboratory for Animal Influenza & Transboundary Diseases, National Veterinary Research Institute (NVRI), Vom 930101, Nigeria
| | - Edoardo Giussani
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Elisa Palumbo
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Bianca Zecchin
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Silvia Maniero
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Angélique Angot
- Animal Health Service (NSAH), Food and Agriculture Organization of the United Nations (FAO-UN), 00198 Rome, Italy
| | - Mamadou Niang
- Regional Office for Africa (RAF), Emergency Centre for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations (FAO-UN), Accra 00233, Ghana
| | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Federica Gobbo
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Taiwo Olasoju
- Federal Department of Veterinary and Pest Control Services (FDV&PCS), Federal Ministry of Agriculture and Rural Development (FMARD), Abuja 900108, Nigeria
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Division of Comparative Biomedical Sciences (BSBIO), 35128 Padova, Italy
| | - Maryam Muhammad
- Regional Laboratory for Animal Influenza & Transboundary Diseases, National Veterinary Research Institute (NVRI), Vom 930101, Nigeria
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8
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Rosone F, Bonfante F, Sala MG, Maniero S, Cersini A, Ricci I, Garofalo L, Caciolo D, Denisi A, Napolitan A, Parente M, Zecchin B, Terregino C, Scicluna MT. Seroconversion of a Swine Herd in a Free-Range Rural Multi-Species Farm against HPAI H5N1 2.3.4.4b Clade Virus. Microorganisms 2023; 11:1162. [PMCID: PMC10224318 DOI: 10.3390/microorganisms11051162] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 06/10/2023] Open
Abstract
Starting from October 2021, several outbreaks of highly pathogenic avian influenza virus (HPAIV) subtype H5N1 were reported in wild and domestic birds in Italy. Following the detection of an HPAIV in a free-ranging poultry farm in Ostia, province of Rome, despite the lack of clinical signs, additional virological and serological analyses were conducted on samples collected from free-ranging pigs, reared in the same holding, due to their direct contact with the infected poultry. While the swine nasal swabs were all RT-PCR negative for the influenza type A matrix (M) gene, the majority (%) of the tested pigs resulted serologically positive for the hemagglutination inhibition test and microneutralization assay, using an H5N1 strain considered to be homologous to the virus detected in the farm. These results provide further evidence of the worrisome replicative fitness that HPAI H5Nx viruses of the 2.3.4.4b clade have in mammalian species. Moreover, our report calls for additional active surveillance, to promptly intercept occasional spillover transmissions to domestic mammals in close contact with HPAI affected birds. Strengthened biosecurity measures and efficient separation should be prioritized in mixed-species farms in areas at risk of HPAI introduction.
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Affiliation(s)
- Francesca Rosone
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (F.B.); (S.M.); (A.N.); (B.Z.)
| | - Marcello Giovanni Sala
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
| | - Silvia Maniero
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (F.B.); (S.M.); (A.N.); (B.Z.)
| | - Antonella Cersini
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
| | - Ida Ricci
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
| | - Luisa Garofalo
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
| | - Daniela Caciolo
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
| | - Antonella Denisi
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
| | - Alessandra Napolitan
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (F.B.); (S.M.); (A.N.); (B.Z.)
| | - Monja Parente
- State Veterinarians of the Local Health Unit (LHU), 00054 Rome, Italy;
| | - Bianca Zecchin
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (F.B.); (S.M.); (A.N.); (B.Z.)
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (F.B.); (S.M.); (A.N.); (B.Z.)
| | - Maria Teresa Scicluna
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana “M. Aleandri”, Via Appia Nuova, 1411, 00178 Rome, Italy; (M.G.S.); (A.C.); (I.R.); (L.G.); (D.C.); (A.D.); (M.T.S.)
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9
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Rota P, La Rocca P, Bonfante F, Pagliari M, Piccoli M, Cirillo F, Ghiroldi A, Franco V, Pappone C, Allevi P, Anastasia L. Design, Synthesis, and Antiviral Evaluation of Sialic Acid Derivatives as Inhibitors of Newcastle Disease Virus Hemagglutinin-Neuraminidase: A Translational Study on Human Parainfluenza Viruses. ACS Infect Dis 2023; 9:617-630. [PMID: 36848501 PMCID: PMC10012260 DOI: 10.1021/acsinfecdis.2c00576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Global infections with viruses belonging to the Paramyxoviridae, such as Newcastle disease virus (NDV) or human parainfluenza viruses (hPIVs), pose a serious threat to animal and human health. NDV-HN and hPIVs-HN (HN hemagglutinin-neuraminidase) share a high degree of similarity in catalytic site structures; therefore, the development of an efficient experimental NDV host model (chicken) may be informative for evaluating the efficacy of hPIVs-HN inhibitors. As part of the broad research in pursuit of this goal and as an extension of our published work on antiviral drug development, we report here the biological results obtained with some newly synthesized C4- and C5-substituted 2,3-unsaturated sialic acid derivatives against NDV. All developed compounds showed high neuraminidase inhibitory activity (IC50 0.03-13 μM). Four molecules (9, 10, 23, 24) confirmed their high in vitro inhibitory activity, which caused a significant reduction of NDV infection in Vero cells, accompanied by very low toxicity.
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Affiliation(s)
- Paola Rota
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20133 Milan, Italy.,Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, 20097 Milan, Italy
| | - Paolo La Rocca
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, 20097 Milan, Italy.,Department of Biomedical Sciences for Health, Università degli Studi di Milano, 20133 Milan, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
| | - Matteo Pagliari
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
| | - Marco Piccoli
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, 20097 Milan, Italy.,Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Federica Cirillo
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, 20097 Milan, Italy.,Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Andrea Ghiroldi
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, 20097 Milan, Italy.,Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Valentina Franco
- Division of Clinical and Experimental Pharmacology, Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy.,IRCCS, Mondino Foundation, 27100 Pavia, Italy
| | - Carlo Pappone
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, 20097 Milan, Italy.,Arrhythmology Department, IRCCS Policlinico San Donato, Piazza Malan 2, San Donato Milanese, 20097 Milan, Italy.,Faculty of Medicine, University of Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Pietro Allevi
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20133 Milan, Italy
| | - Luigi Anastasia
- Institute for Molecular and Translational Cardiology (IMTC), San Donato Milanese, 20097 Milan, Italy.,Laboratory of Stem Cells for Tissue Engineering, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy.,Faculty of Medicine, University of Vita-Salute San Raffaele, 20132 Milan, Italy
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10
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Agüero M, Monne I, Sánchez A, Zecchin B, Fusaro A, Ruano MJ, del Valle Arrojo M, Fernández-Antonio R, Souto AM, Tordable P, Cañás J, Bonfante F, Giussani E, Terregino C, Orejas JJ. Authors' response: Highly pathogenic influenza A(H5N1) viruses in farmed mink outbreak contain a disrupted second sialic acid binding site in neuraminidase, similar to human influenza A viruses. Euro Surveill 2023; 28:2300109. [PMID: 36795502 PMCID: PMC9936594 DOI: 10.2807/1560-7917.es.2023.28.7.2300109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Affiliation(s)
- Montserrat Agüero
- Laboratorio Central de Veterinaria (LCV), Ministry of Agriculture, Fisheries and Food, Algete, Madrid, Spain,These authors contributed equally to this work and share first authorship
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy,These authors contributed equally to this work and share first authorship
| | - Azucena Sánchez
- Laboratorio Central de Veterinaria (LCV), Ministry of Agriculture, Fisheries and Food, Algete, Madrid, Spain
| | - Bianca Zecchin
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - María José Ruano
- Laboratorio Central de Veterinaria (LCV), Ministry of Agriculture, Fisheries and Food, Algete, Madrid, Spain
| | | | | | - Antonio Manuel Souto
- Livestock Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
| | - Pedro Tordable
- Livestock Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
| | - Julio Cañás
- Livestock Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Edoardo Giussani
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Jesús Javier Orejas
- Animal Health Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
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11
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Agüero M, Monne I, Sánchez A, Zecchin B, Fusaro A, Ruano MJ, del Valle Arrojo M, Fernández-Antonio R, Souto AM, Tordable P, Cañás J, Bonfante F, Giussani E, Terregino C, Orejas JJ. Highly pathogenic avian influenza A(H5N1) virus infection in farmed minks, Spain, October 2022. Euro Surveill 2023; 28:2300001. [PMID: 36695488 PMCID: PMC9853945 DOI: 10.2807/1560-7917.es.2023.28.3.2300001] [Citation(s) in RCA: 65] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
In October 2022, an outbreak in Europe of highly pathogenic avian influenza (HPAI) A(H5N1) in intensively farmed minks occurred in northwest Spain. A single mink farm hosting more than 50,000 minks was involved. The identified viruses belong to clade 2.3.4.4b, which is responsible of the ongoing epizootic in Europe. An uncommon mutation (T271A) in the PB2 gene with potential public health implications was found. Our investigations indicate onward mink transmission of the virus may have occurred in the affected farm.
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Affiliation(s)
- Montserrat Agüero
- Laboratorio Central de Veterinaria (LCV), Ministry of Agriculture, Fisheries and Food, Algete, Madrid, Spain
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Azucena Sánchez
- Laboratorio Central de Veterinaria (LCV), Ministry of Agriculture, Fisheries and Food, Algete, Madrid, Spain
| | - Bianca Zecchin
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - María José Ruano
- Laboratorio Central de Veterinaria (LCV), Ministry of Agriculture, Fisheries and Food, Algete, Madrid, Spain
| | | | | | - Antonio Manuel Souto
- Livestock Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
| | - Pedro Tordable
- Livestock Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
| | - Julio Cañás
- Livestock Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Edoardo Giussani
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Jesús Javier Orejas
- Animal Health Service, Counselling of Rural Affairs, Xunta de Galicia, A Coruña, Spain
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12
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Brian I, Manuzzi A, Dalla Rovere G, Giussani E, Palumbo E, Fusaro A, Bonfante F, Bortolami A, Quaranta EG, Monne I, Patarnello T, Bargelloni L, Terregino C, Holmes EC, Todesco G, Sorrentino F, Berton A, Badetti C, Carrer C, Ferrari G, Zincone C, Milan M, Panzarin V. Molecular Monitoring of SARS-CoV-2 in Different Sewage Plants in Venice and the Implications for Genetic Surveillance. ACS ES T Water 2022; 2:1953-1963. [PMID: 37552713 PMCID: PMC9115883 DOI: 10.1021/acsestwater.2c00013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 05/20/2023]
Abstract
Wastewater-based epidemiology is now widely used as an indirect tool to monitor the spread of SARS-CoV-2. In this study, five different sample matrices representing diverse phases of the wastewater treatment process were collected during the second wave of SARS-CoV-2 from two wastewater treatment plants (WWTPs) serving the Civil Hospital and Sacca Fisola island in Venice, Italy. Positive SARS-CoV-2 detections occurred at both WWTPs, and data on viral genome detection rate and quantification suggest that the pellet (i.e., the particulate resulting from the influent) is a sensitive matrix that permits reliable assessment of infection prevalence while reducing time to results. On the contrary, analysis of post-treatment matrices provides evidence of the decontamination efficacy of both WWTPs. Finally, direct sequencing of wastewater samples enabled us to identify B.1.177 and B.1.160 as the prevalent SARS-CoV-2 lineages circulating in Venice at the time of sampling. This study confirmed the suitability of wastewater testing for studying SARS-CoV-2 circulation and established a simplified workflow for the prompt detection and characterization of the virus.
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Affiliation(s)
- Irene Brian
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Alice Manuzzi
- Department of Comparative Biomedicine and Food
Science, University of Padova, Viale
dell’Università 16, 35020 Legnaro, Padova, Italy
| | - Giulia Dalla Rovere
- Department of Comparative Biomedicine and Food
Science, University of Padova, Viale
dell’Università 16, 35020 Legnaro, Padova, Italy
| | - Edoardo Giussani
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Elisa Palumbo
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Alice Fusaro
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Alessio Bortolami
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Erika Giorgia Quaranta
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Isabella Monne
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Tomaso Patarnello
- Department of Comparative Biomedicine and Food
Science, University of Padova, Viale
dell’Università 16, 35020 Legnaro, Padova, Italy
| | - Luca Bargelloni
- Department of Comparative Biomedicine and Food
Science, University of Padova, Viale
dell’Università 16, 35020 Legnaro, Padova, Italy
| | - Calogero Terregino
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
| | - Edward C. Holmes
- Sydney Institute for Infectious Diseases, School of Life
and Environmental Sciences and School of Medical Sciences, University of
Sydney, Sydney 2006, Australia
| | | | - Francesco Sorrentino
- Provveditorato interregionale per il
Veneto, Trentino AA, Friuli Venezia Giulia, Ponte di Rialto, 19, Venezia,
30125, Italy
| | | | | | | | | | - Cinzia Zincone
- Provveditorato interregionale per il
Veneto, Trentino AA, Friuli Venezia Giulia, Ponte di Rialto, 19, Venezia,
30125, Italy
| | - Massimo Milan
- Department of Comparative Biomedicine and Food
Science, University of Padova, Viale
dell’Università 16, 35020 Legnaro, Padova, Italy
| | - Valentina Panzarin
- Division of Comparative Biomedical Sciences,
Istituto Zooprofilattico Sperimentale delle Venezie, Viale
dell’Università 10, 35020 Legnaro, Padova, Italy
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13
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Sabatino J, Sirico D, Di Chiara C, Pogacnik P, Di Candia A, Bonfante F, Dona D, Costenaro P, Fumanelli J, Reffo E, Castaldi B, Biffanti R, Cerutti A, Giaquinto C, Di Salvo G. Mid- and long-term atrio-ventricular mechanics in children after recovery from asymptomatic or mildly symptomatic SARS-CoV-2 infection. Eur Heart J 2022. [PMCID: PMC9619532 DOI: 10.1093/eurheartj/ehac544.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background Clinical manifestations of children's coronavirus disease-2019 (COVID-19) were initially considered less severe compared with adult patients. However, there is now increasing evidence of a “long-tail” of COVID-19 related symptoms lasting for several months after recovery from the acute infection. Long COVID-19-related symptoms and mechanisms are poorly characterized and understood, with several phenotypes reported, often driven by long-term tissue damage (such as lung, heart and brain) and pathological inflammation due to viral persistence and/or immune deregulation. Purpose The objective of this study was to evaluate atrio-ventricular mechanics, by means of two-dimensional speckle-tracking echocardiography, in previously healthy children recovered from asymptomatic or mildly symptomatic severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in a long-term follow-up. Methods We analysed a cohort of 157 paediatric patients, mean age 7±4 years, who had a confirmed diagnosis of SARS-CoV-2 infection and were asymptomatic or mildly symptomatic for COVID-19. Patients underwent standard transthoracic echocardiogram and speckle tracking echocardiographic study 148±68 days after diagnosis. One hundred seven age, sex, and body surface area comparable healthy subjects were used as control group. Results Left ventricular ejection fraction was within normal limits in postCOVID-19 cases and CTRL with no significant differences between the two groups (postCOVID-19: 65.6±4% vs CTRL: 65.0±5%, p=0.182). Left ventricular (LV) global longitudinal strain (postCOVID-19: −20.5±2.9%; CTRL: −21.8±1.7%; p<0.001) was significantly reduced in cases compared with CTRLs. An amount of 11 (7%) postCOVID-19 cases showed impaired GLS values < −17% and 95 subjects (60%) presented with a strain lower than −16% in more than 2 segments. These subjects did not show any difference regarding symptoms or serological findings. Moreover, GLS was significantly reduced in children with disease's onset during the second wave of COVID-19 pandemic, compared with those during the first wave (second wave: −20.2±2.6%; first wave: −21.2±3.4%; p=0.048). Finally, peak left atrial systolic strain was within the normal range in the postCOVID-19 group with no significant differences compared to CTRL (postCOVID-19: 49.1±12%; CTRL: 49.5±18%). Conclusions SARS-CoV-2 infection may affect left ventricular deformation in children despite an asymptomatic or only mildly symptomatic acute illness. Our data show an amount of 60% of children, recovering from asymptomatic or mildly symptomatic COVID-19, with still mild subclinical systolic cardiac impairment in the mid- and long-term follow-up after the infection. This subtle impairment was seen to be worse in children recovering from the second wave of COVID-19 compared to the first one. A follow-up is needed to verify the reversibility of these alterations and their impact on long-term outcomes. Funding Acknowledgement Type of funding sources: None.
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Affiliation(s)
| | - D Sirico
- University of Padua , Padova , Italy
| | | | | | | | | | - D Dona
- University of Padua , Padova , Italy
| | | | | | - E Reffo
- University of Padua , Padova , Italy
| | | | | | - A Cerutti
- University of Padua , Padova , Italy
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14
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Sirico D, Di Chiara C, Costenaro P, Bonfante F, Cozzani S, Plebani M, Reffo E, Castaldi B, Donà D, Da Dalt L, Giaquinto C, Di Salvo G. Left ventricular longitudinal strain alterations in asymptomatic or mildly symptomatic paediatric patients with SARS-CoV-2 infection. Eur Heart J Cardiovasc Imaging 2022; 23:1083-1089. [PMID: 34219155 DOI: 10.1093/ehjci/jeab127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 06/10/2021] [Indexed: 01/07/2023] Open
Abstract
AIMS Compared with adult patients, clinical manifestations of children's coronavirus disease-2019 (COVID-19) are generally perceived as less severe. The objective of this study was to evaluate cardiac involvement in previously healthy children with asymptomatic or mildly symptomatic severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. METHODS AND RESULTS We analysed a cohort of 53 paediatric patients (29 males, 55%), mean age 7.5 ± 4.7 years, who had a confirmed diagnosis of SARS-CoV-2 infection and were asymptomatic or only mildly symptomatic for COVID-19. Patients underwent standard transthoracic echocardiogram and speckle tracking echocardiographic study at least 3 months after diagnosis. Thirty-two age, sex, and body surface area comparable healthy subjects were used as control group. Left ventricular ejection fraction was within normal limits but significantly lower in the cases group compared to controls (62.4 ± 4.1% vs. 65.2 ± 5.5%; P = 0.012). Tricuspid annular plane systolic excursion (20.1 ± 3 mm vs. 19.8 ± 3.4 mm; P = 0.822) and left ventricular (LV) global longitudinal strain (-21.9 ± 2.4% vs. -22.6 ± 2.5%; P = 0.208) were comparable between the two groups. Regional LV strain analysis showed a significant reduction of the LV mid-wall segments strain among cases compared to controls. Furthermore, in the cases group, there were 14 subjects (26%) with a regional peak systolic strain below -16% (-2.5 Z score in our healthy cohort) in at least two segments. These subjects did not show any difference regarding symptoms or serological findings. CONCLUSION SARS-CoV-2 infection may affect left ventricular deformation in 26% of children despite an asymptomatic or only mildly symptomatic acute illness. A follow-up is needed to verify the reversibility of these alterations and their impact on long-term outcomes.
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Affiliation(s)
- Domenico Sirico
- Department for Women's and Children's Health, University Hospital of Padova, Pediatric and Congenital Cardiology Unit, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Costanza Di Chiara
- Department for Women's and Children's Health, University Hospital of Padova, Division of Pediatric Infectious Diseases, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Paola Costenaro
- Department for Women's and Children's Health, University Hospital of Padova, Division of Pediatric Infectious Diseases, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università 10, 35020 Legnaro, Italy
| | - Sandra Cozzani
- Department for Women's and Children's Health, University Hospital of Padova, Division of Pediatric Infectious Diseases, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Mario Plebani
- Department of Laboratory Medicine, University Hospital of Padova, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Elena Reffo
- Department for Women's and Children's Health, University Hospital of Padova, Pediatric and Congenital Cardiology Unit, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Biagio Castaldi
- Department for Women's and Children's Health, University Hospital of Padova, Pediatric and Congenital Cardiology Unit, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Daniele Donà
- Department for Women's and Children's Health, University Hospital of Padova, Division of Pediatric Infectious Diseases, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Liviana Da Dalt
- Department for Women's and Children's Health, University Hospital of Padova, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Carlo Giaquinto
- Department for Women's and Children's Health, University Hospital of Padova, Division of Pediatric Infectious Diseases, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
| | - Giovanni Di Salvo
- Department for Women's and Children's Health, University Hospital of Padova, Pediatric and Congenital Cardiology Unit, Via Nicolò Giustiniani, 2, 35128 Padova, Italy
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15
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Bortolami A, Mazzetto E, Kangethe RT, Wijewardana V, Barbato M, Porfiri L, Maniero S, Mazzacan E, Budai J, Marciano S, Panzarin V, Terregino C, Bonfante F, Cattoli G. Protective Efficacy of H9N2 Avian Influenza Vaccines Inactivated by Ionizing Radiation Methods Administered by the Parenteral or Mucosal Routes. Front Vet Sci 2022; 9:916108. [PMID: 35898545 PMCID: PMC9309530 DOI: 10.3389/fvets.2022.916108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 06/03/2022] [Indexed: 11/13/2022] Open
Abstract
H9N2 viruses have become, over the last 20 years, one of the most diffused poultry pathogens and have reached a level of endemicity in several countries. Attempts to control the spread and reduce the circulation of H9N2 have relied mainly on vaccination in endemic countries. However, the high level of adaptation to poultry, testified by low minimum infectious doses, replication to high titers, and high transmissibility, has severely hampered the results of vaccination campaigns. Commercially available vaccines have demonstrated high efficacy in protecting against clinical disease, but variable results have also been observed in reducing the level of replication and viral shedding in domestic poultry species. Antigenic drift and increased chances of zoonotic infections are the results of incomplete protection offered by the currently available vaccines, of which the vast majority are based on formalin-inactivated whole virus antigens. In our work, we evaluated experimental vaccines based on an H9N2 virus, inactivated by irradiation treatment, in reducing viral shedding upon different challenge doses and compared their efficacy with formalin-inactivated vaccines. Moreover, we evaluated mucosal delivery of inactivated antigens as an alternative route to subcutaneous and intramuscular vaccination. The results showed complete protection and prevention of replication in subcutaneously vaccinated Specific Pathogen Free White Leghorn chickens at low-to-intermediate challenge doses but a limited reduction of shedding at a high challenge dose. Mucosally vaccinated chickens showed a more variable response to experimental infection at all tested challenge doses and the main effect of vaccination attained the reduction of infected birds in the early phase of infection. Concerning mucosal vaccination, the irradiated vaccine was the only one affording complete protection from infection at the lowest challenge dose. Vaccine formulations based on H9N2 inactivated by irradiation demonstrated a potential for better performances than vaccines based on the formalin-inactivated antigen in terms of reduction of shedding and prevention of infection.
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Affiliation(s)
- Alessio Bortolami
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Eva Mazzetto
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Richard Thiga Kangethe
- Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency (IAEA), Vienna, Austria
| | - Viskam Wijewardana
- Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency (IAEA), Vienna, Austria
| | - Mario Barbato
- Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency (IAEA), Vienna, Austria
- Department of Animal Science Food and Nutrition–DIANA, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Luca Porfiri
- Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency (IAEA), Vienna, Austria
| | - Silvia Maniero
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Elisa Mazzacan
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Jane Budai
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Sabrina Marciano
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Valentina Panzarin
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Calogero Terregino
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Francesco Bonfante
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Giovanni Cattoli
- Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency (IAEA), Vienna, Austria
- *Correspondence: Giovanni Cattoli
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16
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Di Chiara C, Cantarutti A, Costenaro P, Donà D, Bonfante F, Cosma C, Ferrarese M, Cozzani S, Petrara MR, Carmona F, Liberati C, Palma P, Di Salvo G, De Rossi A, Plebani M, Padoan A, Giaquinto C. Long-term Immune Response to SARS-CoV-2 Infection Among Children and Adults After Mild Infection. JAMA Netw Open 2022; 5:e2221616. [PMID: 35816313 PMCID: PMC9280400 DOI: 10.1001/jamanetworkopen.2022.21616] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
IMPORTANCE Understanding the long-term immune response against SARS-CoV-2 infection in children is crucial to optimize vaccination strategies. Although it is known that SARS-CoV-2 antibodies may persist in adults 12 months after infection, data are limited in the pediatric population. OBJECTIVE To examine long-term anti-SARS-CoV-2 spike receptor-binding domain (S-RBD) IgG kinetics in children after SARS-CoV-2 infection. DESIGN, SETTING, AND PARTICIPANTS In this single-center, prospective cohort study, patients were enrolled consecutively from April 1, 2020, to August 31, 2021, at the COVID-19 Family Cluster Follow-up Clinic, Department of Women's and Children's Health, University Hospital of Padua. A cohort of 252 COVID-19 family clusters underwent serologic follow-up at 1 to 4, 5 to 10, and more than 10 months after infection with quantification of anti-S-RBD IgG by chemiluminescent immunoassay. EXPOSURES SARS-CoV-2 infection. RESULTS Among 902 study participants, 697 had confirmed SARS-CoV-2 infection, including 351 children or older siblings (mean [SD] age, 8.6 [5.1] years) and 346 parents (mean [SD] age, 42.5 [7.1] years). Among 697 cases, 674 (96.7%) were asymptomatic or mild. Children had significantly higher S-RBD IgG titers than older patients across all follow-up time points, with an overall median S-RBD IgG titer in patients younger than 3 years 5-fold higher than adults (304.8 [IQR, 139.0-516.6] kBAU/L vs 55.6 [24.2-136.0] kBAU/L, P < .001). Longitudinal analysis of 56 study participants sampled at least twice during follow-up demonstrated the persistence of antibodies up to 10 months from infection in all age classes, despite a progressive decline over time. CONCLUSIONS AND RELEVANCE In this cohort study of Italian children and adults following SARS-CoV-2 infection different kinetics of SARS-CoV-2 antibodies were found across several age classes of individuals with asymptomatic or mild COVID-19, which could help in optimizing COVID-19 vaccination strategies and prevention policies. This work provides further evidence of sustained immune response in children up to 1 year after primary SARS-CoV-2 infection.
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Affiliation(s)
- Costanza Di Chiara
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Anna Cantarutti
- Department of Statistics and Quantitative Methods, Division of Biostatistics, Epidemiology and Public Health, Laboratory of Healthcare Research and Pharmacoepidemiology, University of Milano-Bicocca, Milan, Italy
| | - Paola Costenaro
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Daniele Donà
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padua, Padua, Italy
| | - Martina Ferrarese
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Sandra Cozzani
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Maria Raffaella Petrara
- Department of Surgery, Oncology and Gastroenterology, Section of Oncology and Immunology, University of Padova, Padua, Italy
| | | | - Cecilia Liberati
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Paolo Palma
- Research Unit of Congenital and Perinatal Infections, Bambino Gesù Children's Hospital, Rome, Italy
| | - Giovanni Di Salvo
- Department for Women’s and Children’s Health, University of Padua, Padua, Italy
| | - Anita De Rossi
- Department of Surgery, Oncology and Gastroenterology, Section of Oncology and Immunology, University of Padova, Padua, Italy
- Istituto Oncologico Veneto - IRCCS, Padua, Italy
| | - Mario Plebani
- Department of Laboratory Medicine, University-Hospital of Padua, Padua, Italy
- Department of Medicine, University of Padua, Padua, Italy
| | - Andrea Padoan
- Department of Medicine, University of Padua, Padua, Italy
| | - Carlo Giaquinto
- Division of Pediatric Infectious Diseases, Department for Women’s and Children’s Health, University of Padua, Padua, Italy
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17
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Panzarin V, Marciano S, Fortin A, Brian I, D’Amico V, Gobbo F, Bonfante F, Palumbo E, Sakoda Y, Le KT, Chu DH, Shittu I, Meseko C, Haido AM, Odoom T, Diouf MN, Djegui F, Steensels M, Terregino C, Monne I. Redesign and Validation of a Real-Time RT-PCR to Improve Surveillance for Avian Influenza Viruses of the H9 Subtype. Viruses 2022; 14:v14061263. [PMID: 35746734 PMCID: PMC9227555 DOI: 10.3390/v14061263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 02/01/2023] Open
Abstract
Avian influenza viruses of the H9 subtype cause significant losses to poultry production in endemic regions of Asia, Africa and the Middle East and pose a risk to human health. The availability of reliable and updated diagnostic tools for H9 surveillance is thus paramount to ensure the prompt identification of this subtype. The genetic variability of H9 represents a challenge for molecular-based diagnostic methods and was the cause for suboptimal detection and false negatives during routine diagnostic monitoring. Starting from a dataset of sequences related to viruses of different origins and clades (Y439, Y280, G1), a bioinformatics workflow was optimized to extract relevant sequence data preparatory for oligonucleotides design. Analytical and diagnostic performances were assessed according to the OIE standards. To facilitate assay deployment, amplification conditions were optimized with different nucleic extraction systems and amplification kits. Performance of the new real-time RT-PCR was also evaluated in comparison to existing H9-detection methods, highlighting a significant improvement of sensitivity and inclusivity, in particular for G1 viruses. Data obtained suggest that the new assay has the potential to be employed under different settings and geographic areas for a sensitive detection of H9 viruses.
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Affiliation(s)
- Valentina Panzarin
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
- Correspondence:
| | - Sabrina Marciano
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Andrea Fortin
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Irene Brian
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Valeria D’Amico
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Federica Gobbo
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Francesco Bonfante
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Elisa Palumbo
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Yoshihiro Sakoda
- OIE Reference Laboratory for Avian Influenza, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan; (Y.S.); (K.T.L.)
| | - Kien Trung Le
- OIE Reference Laboratory for Avian Influenza, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan; (Y.S.); (K.T.L.)
| | - Duc-Huy Chu
- Department of Animal Health, Ministry of Agriculture and Rural Development (MARD), Hanoi 115-19, Vietnam;
| | - Ismaila Shittu
- Regional Laboratory for Animal Influenzas and Other Transboundary Animal Diseases, National Veterinary Research Institute (NVRI), Vom 930010, Nigeria; (I.S.); (C.M.)
| | - Clement Meseko
- Regional Laboratory for Animal Influenzas and Other Transboundary Animal Diseases, National Veterinary Research Institute (NVRI), Vom 930010, Nigeria; (I.S.); (C.M.)
| | - Abdoul Malick Haido
- Laboratoire Central de l’Élevage (LABOCEL), Ministère de l’Agriculture et de l’Elevage, Niamey 485, Niger;
| | - Theophilus Odoom
- Accra Veterinary Laboratory, Veterinary Services Directorate, Ministry of Food & Agriculture, Accra M161, Ghana;
| | - Mame Nahé Diouf
- Laboratoire National de l’Élevage et de Recherches Vétérinaires (LNERV) de l’Institut Sénégalais de Recherches Agricoles (ISRA), Dakar-Hann 2057, Senegal;
| | - Fidélia Djegui
- Laboratoire de Diagnostic Vétérinaire et de Sérosurveillance (LADISERO), Parakou 23, Benin;
| | - Mieke Steensels
- AI/ND National Reference Laboratory, Sciensano, 1050 Brussels, Belgium;
| | - Calogero Terregino
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
| | - Isabella Monne
- EU/OIE/National Reference Laboratory for Avian Influenza and Newcastle Disease, FAO Reference Centre for Animal Influenza and Newcastle Disease, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), 35020 Legnaro, Italy; (S.M.); (A.F.); (I.B.); (V.D.); (F.G.); (F.B.); (E.P.); (C.T.); (I.M.)
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18
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Colitti B, Manassero L, Colombino E, Ferraris EI, Caccamo R, Bertolotti L, Bortolami A, Bonfante F, Papa V, Cenacchi G, Calabrese F, Bozzetta E, Varello K, Capucchio MT, Rosati S. Pulmonary fibrosis in a dog as a sequela of infection with Severe Acute Respiratory Syndrome Coronavirus 2? A case report. BMC Vet Res 2022; 18:111. [PMID: 35317791 PMCID: PMC8938595 DOI: 10.1186/s12917-022-03191-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/28/2022] [Indexed: 11/10/2022] Open
Abstract
Background Interstitial lung disease is a heterogeneous group of conditions characterized by severe radiographic changes and clinicopathological findings. However, in the vast majority of cases, the cause remains unknown. Case description In the present study, we reported the clinical case of a 3 years old female Bull Terrier presented in October 2020 to the Advanced Diagnostic Imaging Department of the Turin Veterinary Teaching Hospital with a progressive pulmonary illness characterized by dyspnea, exercise intolerance, and a diffuse and severe pulmonary interstitial pattern at imaging investigations. Considering the clinical findings, the dog was included in a serological survey for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection in companion animals, showing positive results. Due to the further clinical worsening, the owners opted for euthanasia. At necroscopy, dog showed severe and chronic bronchopneumonia compatible with a Canine Idiopathic Pulmonary Fibrosis and with serological features linked to a SARS-CoV-2 infection. Conclusions The comparison of these lesions with those reported in humans affected by Coronavirus Disease 2019 (COVID-19) supports the hypothesis that these findings may be attributable to the post-acute sequelae of SARS-CoV-2 infection in a dog with breed predisposition to Canine Idiopathic Pulmonary Fibrosis (CIPF), although direct evidence of SARS-CoV-2 by molecular or antigenic approaches remained unsolved. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03191-x.
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Affiliation(s)
- Barbara Colitti
- Department of Veterinary Sciences, University of Turin, Turin, Italy.
| | - Luca Manassero
- Department of Veterinary Sciences, University of Turin, Turin, Italy
| | - Elena Colombino
- Department of Veterinary Sciences, University of Turin, Turin, Italy
| | | | - Roberta Caccamo
- Department of Veterinary Sciences, University of Turin, Turin, Italy
| | - Luigi Bertolotti
- Department of Veterinary Sciences, University of Turin, Turin, Italy
| | | | | | - Valentina Papa
- Department of Biomedical and Neuromotor Sciences, "Alma Mater" University of Bologna, Bologna, Italy
| | - Giovanna Cenacchi
- Department of Biomedical and Neuromotor Sciences, "Alma Mater" University of Bologna, Bologna, Italy
| | - Fiorella Calabrese
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova Medical School, Padua, Italy
| | - Elena Bozzetta
- Istituto zooprofilattico Sperimentale del Piemonte, Liguria e valle d'Aosta, Turin, Italy
| | - Katia Varello
- Istituto zooprofilattico Sperimentale del Piemonte, Liguria e valle d'Aosta, Turin, Italy
| | | | - Sergio Rosati
- Department of Veterinary Sciences, University of Turin, Turin, Italy
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19
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Colitti B, Bonfante F, Grazioli S, Anfossi L, Nogarol C, Scalas D, Bertolotti L, Bortolami A, Pagliari M, Pezzoni G, Moreno A, Lelli D, Gennero MS, Dondo A, Brocchi E, Rosati S. Detailed epitope mapping of SARS-CoV-2 nucleoprotein reveals specific immunoresponse in cats and dogs housed with COVID-19 patients. Res Vet Sci 2022; 143:81-87. [PMID: 34998208 PMCID: PMC8723757 DOI: 10.1016/j.rvsc.2021.12.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 12/01/2021] [Accepted: 12/28/2021] [Indexed: 12/19/2022]
Abstract
Since the initial emergence in December 2019, the novel Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has been reported in over 200 countries, representing an unprecedented challenge related to disease control worldwide. In this context, cases of human to animal transmission have been reported, raising concern about the potential role of companion animals in the pandemic and stressing the need for reliable animal testing. In the study, a detailed epitope mapping of SARS-CoV-2 nucleoprotein, using both human and pet sera, allowed the identification of the most antigenic region in the C-terminus domain of the protein, which was used to develop an experimental double antigen-based ELISA. A panel of pre-pandemic sera and sera of animals immunized against (or naturally infected with) related coronaviruses was used to assess assay specificity at 99.5%. Positive sera belonging to animals housed with COVID-19 patients were confirmed with the experimental double-antigen ELISA using Plaque Reduction Neutralization test (PRNT) test as gold standard. The availability of a serological assay that targets a highly specific viral antigen represents a valuable tool for multispecies monitoring of Coronavirus Disease 2019 (COVID-19) infection in susceptible animals.
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Affiliation(s)
- Barbara Colitti
- Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Torino, Italy.
| | - Francesco Bonfante
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Universita' 10, 35020 Legnaro, PD, Italy
| | - Santina Grazioli
- National Reference Centre for Vesicular Diseases, Dpt. Biotechnology, OIE/FAO reference laboratories for FMD and for SVD, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via Bianchi 9, 25124, Brescia, Italy
| | - Laura Anfossi
- Department of Chemistry, University of Turin, Via Giuria, 5, I-10125 Turin, Italy
| | - Chiara Nogarol
- In3Diagnostic s.r.l., Largo Paolo Braccini 2, 10095 Grugliasco, Torino, Italy
| | - Daniela Scalas
- Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Torino, Italy
| | - Luigi Bertolotti
- Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Torino, Italy
| | - Alessio Bortolami
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Universita' 10, 35020 Legnaro, PD, Italy
| | - Matteo Pagliari
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Universita' 10, 35020 Legnaro, PD, Italy
| | - Giulia Pezzoni
- National Reference Centre for Vesicular Diseases, Dpt. Biotechnology, OIE/FAO reference laboratories for FMD and for SVD, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via Bianchi 9, 25124, Brescia, Italy
| | - Ana Moreno
- Virology Unit, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia-Romagna, 25124 Brescia, Italy
| | - Davide Lelli
- Virology Unit, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia-Romagna, 25124 Brescia, Italy
| | - Maria Silvia Gennero
- The Veterinary Medical Research Institute for Piemonte, Liguria and Valle d'Aosta, via Bologna 148, 10154 Turin, Italy
| | - Alessandro Dondo
- The Veterinary Medical Research Institute for Piemonte, Liguria and Valle d'Aosta, via Bologna 148, 10154 Turin, Italy
| | - Emiliana Brocchi
- National Reference Centre for Vesicular Diseases, Dpt. Biotechnology, OIE/FAO reference laboratories for FMD and for SVD, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via Bianchi 9, 25124, Brescia, Italy
| | - Sergio Rosati
- Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Torino, Italy
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20
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Padoan A, Cosma C, Bonfante F, Della Rocca F, Barbaro F, Santarossa C, Dall'Olmo L, Pagliari M, Bortolami A, Cattelan A, Cianci V, Basso D, Plebani M. Neutralizing antibody titers six months after Comirnaty vaccination: kinetics and comparison with SARS-CoV-2 immunoassays. Clin Chem Lab Med 2021; 60:456-463. [PMID: 34911170 DOI: 10.1515/cclm-2021-1247] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES mRNA vaccines, including Comirnaty (BNT162b2 mRNA, BioNTech-Pfizer), elicit high IgG and neutralizing antibody (NAb) responses after the second dose, but the progressive decrease in serum antibodies against SARS-CoV-2 following vaccination have raised questions concerning long-term immunity, decreased antibody levels being associated with breakthrough infections after vaccination, prompting the consideration of booster doses. METHODS A total number of 189 Padua University-Hospital healthcare workers (HCW) who had received a second vaccine dose were asked to collect serum samples for determining Ab at 12 (t12) and 28 (t28) days, and 6 months (t6m) after their first Comirnaty/BNT162b2 inoculation. Ab titers were measured with plaque reduction neutralization test (PRNT), and three chemiluminescent immunoassays, targeting the receptor binding domain (RBD), the trimeric Spike protein (trimeric-S), and surrogate viral neutralization tests (sVNT). RESULTS The median percentages (interquartile range) for decrease in antibodies values 6 months after the first dose were 86.8% (67.1-92.8%) for S-RBD IgG, 82% (58.6-89.3%) for trimeric-S, 70.4% (34.5-86.4%) for VNT-Nab, 75% (50-87.5%) for PRNT50 and 75% (50-93.7%) for PRNT90. At 6 months, neither PRNT titers nor VNT-Nab and S-RBD IgG bAb levels correlated with age (p=0.078) or gender (p=0.938), while they were correlated with previous infection (p<0.001). CONCLUSIONS After 6 months, a method-independent reduction of around 90% in anti-SARS-CoV-2 antibodies was detected, while no significant differences were found between values of males and females aged between 24 and 65 years without compromised health status. Further efforts to improve analytical harmonization and standardization are needed.
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Affiliation(s)
- Andrea Padoan
- Department of Medicine-DIMED, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | | | - Francesco Barbaro
- Infective and Tropical Disease Unit, Padua University Hospital, Padova, Italy
| | | | - Luigi Dall'Olmo
- Department of Surgical Oncological and Gastroenterological Sciences - DISCOG, University of Padova, Padova, Italy.,Veneto Institute of Oncology, IOV-IRCCS, Padova, Italy
| | - Matteo Pagliari
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Alessio Bortolami
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Annamaria Cattelan
- Infective and Tropical Disease Unit, Padua University Hospital, Padova, Italy
| | - Vito Cianci
- Emergency Department, Padua University Hospital, Padova, Italy
| | - Daniela Basso
- Department of Medicine-DIMED, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Mario Plebani
- Department of Medicine-DIMED, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
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21
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Bortolami A, Donini M, Marusic C, Lico C, Drissi Touzani C, Gobbo F, Mazzacan E, Fortin A, Panzarin VM, Bonfante F, Baschieri S, Terregino C. Development of a Novel Assay Based on Plant-Produced Infectious Bursal Disease Virus VP3 for the Differentiation of Infected From Vaccinated Animals. Front Plant Sci 2021; 12:786871. [PMID: 34950172 PMCID: PMC8689005 DOI: 10.3389/fpls.2021.786871] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/02/2021] [Indexed: 05/28/2023]
Abstract
Infectious bursal disease virus is the causative agent of Gumboro disease, a severe infection that affects young chickens and is associated with lymphoid depletion in the bursa of Fabricius. Traditional containment strategies are based either on inactivated or live-attenuated vaccines. These approaches have several limitations such as residual virulence or low efficacy in the presence of maternally derived antibodies (MDA) but, most importantly, the impossibility to detect the occurrence of natural infections in vaccinated flocks. Therefore, the development of novel vaccination strategies allowing the differentiation of infected from vaccinated animals (DIVA) is a priority. Recently, commercial vectored and experimental subunit vaccines based on VP2 have been proved effective in protecting from clinical disease and posed the basis for the development of novel DIVA strategies. In this study, an engineered version of the VP3 protein of IBDV (His-VP3) was produced in plants, successfully purified from Nicotiana benthamiana leaves, and used to develop an enzyme-linked immunosorbent assay (ELISA) for the detection of anti-VP3 antibodies. The His-VP3 ELISA was validated with a panel of 180 reference sera and demonstrated to have 100% sensitivity (95% CI: 94.7-100.0) and 94.17% specificity (95% CI: 88.4-97.6). To evaluate the application of His-VP3 ELISA as a DIVA test, the novel assay was used to monitor, in combination with a commercial kit, detecting anti-VP2 antibodies, the immune response of chickens previously immunized with an inactivated IBDV vaccine, a recombinant Turkey herpes virus carrying the VP2 of IBDV (HVT-ND-IBD) or with plant-produced VP2 particles. The combined tests correctly identified the immune status of the vaccinated specific pathogen free white-leghorn chickens. Moreover, the His-VP3 ELISA correctly detected MDA against VP3 in commercial broiler chicks and showed that antibody titers fade with time, consistent with the natural decrease of maternally derived immunity. Finally, the novel assay, in combination with a VP2-specific ELISA, demonstrated its potential application as a DIVA test in chickens inoculated with VP2-based vaccines, being able to detect the seroconversion after challenge with a very virulent IBDV strain.
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Affiliation(s)
- Alessio Bortolami
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Marcello Donini
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
| | - Carla Marusic
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
| | - Chiara Lico
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
| | - Charifa Drissi Touzani
- Avian Pathology Unit, Pathology and Veterinary Public Health Department, Agronomic and Veterinary Institute Hassan II, Rabat, Morocco
| | - Federica Gobbo
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Elisa Mazzacan
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Andrea Fortin
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Valentina Maria Panzarin
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Francesco Bonfante
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Selene Baschieri
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
| | - Calogero Terregino
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
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22
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Padoan A, Cosma C, Bonfante F, Rocca FD, Barbaro F, Santarossa C, Dall'Olmo L, Pagliari M, Bortolami A, Cattelan A, Cianci V, Basso D, Plebani M. SARS-CoV-2 neutralizing antibodies after one or two doses of Comirnaty (BNT162b2, BioNTech/Pfizer): Kinetics and comparison with chemiluminescent assays. Clin Chim Acta 2021; 523:446-453. [PMID: 34755646 PMCID: PMC8553360 DOI: 10.1016/j.cca.2021.10.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Studies evaluating neutralizing antibody (NAb) after BNT162b2 vaccine are scarce. We therefore compared NAb using the plaque reduction neutralization test (PRNT) in vaccinated subjects, with those from five chemiluminescent (CLIA) assays, two targeting ACE and S-RBD interaction. METHODS Sera from 174 completely Comirnaty/BNT162b2 vaccinated healthcare workers (HCW) were evaluated at t12 and t28. NAb titers at low (PRNT50) or high (PRNT90) stringency were compared with: Liaison SARS-CoV-2 Trimeric-S IgG, Elecsys S-RBD Ab, Maglumi SARS-CoV-2 S-RBD IgG and SARS-CoV-2 Nab; iFlash 2019-nCoV NAb. RESULTS Neither PRNT50 nor PRNT90 correlated with age (range, 24-65 years); no significant differences were found for gender. PRNT50 and PRNT90 seropositive titers (≥1:20) were 43 (24.7%) and 15 (8.6%) at t12 and 167 (95.9%) and 149 (85.6%) at t28. CLIA results at t28 were uncorrelated with age, apart from Elecsys S-RBD Ab (r = -0.164, p = 0.046). Gender differences were found for Maglumi SARS-CoV-2 S-RBD IgG (p = 0.037) and Maglumi NAb (p = 0.046). Considering PRNT50 at thresholds of 1:20 (or 1:40) and 1:160 (or 1:320), corresponding to different immune protective levels, CLIA cut-offs have been identified. CONCLUSIONS Comirnaty/BNT162b2 elicits strong NAb production, especially 28 days after first inoculum. Differences in correlation between Nab titers and circulating antibodies measured by 5 immunoassays have been found, being stronger the correlation for Maglumi Nab.
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Affiliation(s)
- Andrea Padoan
- Department of Medicine-DIMED, University of Padua, Italy; Department of Laboratory Medicine, University-Hospital of Padua, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padua, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | | | - Francesco Barbaro
- Infective and Tropical Disease Unit, Padua University Hospital, Padua, Italy
| | | | - Luigi Dall'Olmo
- Department of Surgical Oncological and Gastroenterological Sciences - DISCOG, University of Padua, Italy; Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Matteo Pagliari
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Alessio Bortolami
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Annamaria Cattelan
- Infective and Tropical Disease Unit, Padua University Hospital, Padua, Italy
| | - Vito Cianci
- Emergency Department, Padua University Hospital, Padua, Italy
| | - Daniela Basso
- Department of Medicine-DIMED, University of Padua, Italy; Department of Laboratory Medicine, University-Hospital of Padua, Italy
| | - Mario Plebani
- Department of Medicine-DIMED, University of Padua, Italy; Department of Laboratory Medicine, University-Hospital of Padua, Italy.
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23
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Giobbe GG, Bonfante F, Jones BC, Gagliano O, Luni C, Zambaiti E, Perin S, Laterza C, Busslinger G, Stuart H, Pagliari M, Bortolami A, Mazzetto E, Manfredi A, Colantuono C, Di Filippo L, Pellegata AF, Panzarin V, Thapar N, Li VSW, Eaton S, Cacchiarelli D, Clevers H, Elvassore N, De Coppi P. SARS-CoV-2 infection and replication in human gastric organoids. Nat Commun 2021; 12:6610. [PMID: 34785679 PMCID: PMC8595698 DOI: 10.1038/s41467-021-26762-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 10/20/2021] [Indexed: 12/13/2022] Open
Abstract
COVID-19 typically manifests as a respiratory illness, but several clinical reports have described gastrointestinal symptoms. This is particularly true in children in whom gastrointestinal symptoms are frequent and viral shedding outlasts viral clearance from the respiratory system. These observations raise the question of whether the virus can replicate within the stomach. Here we generate gastric organoids from fetal, pediatric, and adult biopsies as in vitro models of SARS-CoV-2 infection. To facilitate infection, we induce reverse polarity in the gastric organoids. We find that the pediatric and late fetal gastric organoids are susceptible to infection with SARS-CoV-2, while viral replication is significantly lower in undifferentiated organoids of early fetal and adult origin. We demonstrate that adult gastric organoids are more susceptible to infection following differentiation. We perform transcriptomic analysis to reveal a moderate innate antiviral response and a lack of differentially expressed genes belonging to the interferon family. Collectively, we show that the virus can efficiently infect the gastric epithelium, suggesting that the stomach might have an active role in fecal-oral SARS-CoV-2 transmission.
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Affiliation(s)
- Giovanni Giuseppe Giobbe
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK.
| | - Francesco Bonfante
- Lab. of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Brendan C Jones
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK
| | - Onelia Gagliano
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Camilla Luni
- Shanghai Institute for Advanced Immunochemical Studies (SIAIS), ShanghaiTech University, Shanghai, China
| | - Elisa Zambaiti
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Dept. Women's and Children's Health, University of Padova, Padova, Italy
| | - Silvia Perin
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK
| | - Cecilia Laterza
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Georg Busslinger
- Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center (UMC) Utrecht, Utrecht, Netherlands
| | - Hannah Stuart
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Matteo Pagliari
- Lab. of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Alessio Bortolami
- Lab. of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Eva Mazzetto
- Lab. of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Anna Manfredi
- Telethon Institute of Genetics and Medicine (TIGEM), Armenise/Harvard Laboratory of Integrative Genomics, Pozzuoli, Italy
- Next Generation Diagnostic srl, Pozzuoli, Italy
| | - Chiara Colantuono
- Telethon Institute of Genetics and Medicine (TIGEM), Armenise/Harvard Laboratory of Integrative Genomics, Pozzuoli, Italy
- Next Generation Diagnostic srl, Pozzuoli, Italy
| | - Lucio Di Filippo
- Telethon Institute of Genetics and Medicine (TIGEM), Armenise/Harvard Laboratory of Integrative Genomics, Pozzuoli, Italy
- Next Generation Diagnostic srl, Pozzuoli, Italy
| | - Alessandro Filippo Pellegata
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK
| | - Valentina Panzarin
- Lab. of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Nikhil Thapar
- Gastroenterology, Hepatology and Liver Transplant, Queensland Children's Hospital, Brisbane, Australia
| | - Vivian Sze Wing Li
- Stem Cell and Cancer Biology Lab, the Francis Crick Institute, London, UK
| | - Simon Eaton
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK
| | - Davide Cacchiarelli
- Telethon Institute of Genetics and Medicine (TIGEM), Armenise/Harvard Laboratory of Integrative Genomics, Pozzuoli, Italy
- Department of Translational Medicine, University of Naples Federico II, Naples, Italy
| | - Hans Clevers
- Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center (UMC) Utrecht, Utrecht, Netherlands
- Princess Máxima Center (PMC) for Pediatric Oncology, Utrecht, Netherlands
| | - Nicola Elvassore
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK.
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy.
- Shanghai Institute for Advanced Immunochemical Studies (SIAIS), ShanghaiTech University, Shanghai, China.
- Dept. of Industrial Engineering, University of Padova, Padova, Italy.
| | - Paolo De Coppi
- Stem Cell and Regenerative Medicine Section, GOS Institute of Child Health, University College London, London, UK.
- Dept. of Specialist Neonatal and Paediatric Surgery, Great Ormond Street Hospital, London, UK.
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24
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D’Accolti M, Soffritti I, Bonfante F, Ricciardi W, Mazzacane S, Caselli E. Potential of an Eco-Sustainable Probiotic-Cleaning Formulation in Reducing Infectivity of Enveloped Viruses. Viruses 2021; 13:2227. [PMID: 34835033 PMCID: PMC8617880 DOI: 10.3390/v13112227] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/02/2021] [Accepted: 11/02/2021] [Indexed: 12/23/2022] Open
Abstract
The COVID-19 pandemic has deeply influenced sanitization procedures, and high-level disinfection has been massively used to prevent SARS-CoV-2 spread, with potential negative impact on the environment and on the threat of antimicrobial resistance (AMR). Aiming to overcome these concerns, yet preserving the effectiveness of sanitization against enveloped viruses, we assessed the antiviral properties of the Probiotic Cleaning Hygiene System (PCHS), an eco-sustainable probiotic-based detergent previously proven to stably abate pathogen contamination and AMR. PCHS (diluted 1:10, 1:50 and 1:100) was tested in comparison to common disinfectants (70% ethanol and 0.5% sodium hypochlorite), in suspension and carrier tests, according with the European UNI EN 14476:2019 and UNI EN 16777:2019 standards. Human alpha- and beta-coronaviruses hCoV-229E and SARS-CoV-2, human herpesvirus type 1, human and animal influenza viruses, and vaccinia virus were included in the study. The results showed that PCHS was able to inactivate 99.99% of all tested viruses within 1-2 h of contact, both in suspension and on surface. Notably, while control disinfectants became inactive within 2 h after application, the PCHS antiviral action persisted up to 24 h post-application, suggesting that its use may effectively allow a continuous prevention of virus spread via contaminated environment, without worsening environmental pollution and AMR concern.
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Affiliation(s)
- Maria D’Accolti
- Section of Microbiology, Department of Chemical, Pharmaceutical and Agricultural Sciences, LTTA, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.D.); (I.S.)
- CIAS Research Center, University of Ferrara, Via Saragat 13, 44122 Ferrara, Italy;
| | - Irene Soffritti
- Section of Microbiology, Department of Chemical, Pharmaceutical and Agricultural Sciences, LTTA, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.D.); (I.S.)
- CIAS Research Center, University of Ferrara, Via Saragat 13, 44122 Ferrara, Italy;
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie, IZSVe, Viale dell’Università 10, 35020 Legnaro, Italy;
| | - Walter Ricciardi
- Faculty of Medicine and Surgery, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Roma, Italy;
| | - Sante Mazzacane
- CIAS Research Center, University of Ferrara, Via Saragat 13, 44122 Ferrara, Italy;
| | - Elisabetta Caselli
- Section of Microbiology, Department of Chemical, Pharmaceutical and Agricultural Sciences, LTTA, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (M.D.); (I.S.)
- CIAS Research Center, University of Ferrara, Via Saragat 13, 44122 Ferrara, Italy;
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25
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Cotugno N, Ruggiero A, Pascucci GR, Bonfante F, Petrara MR, Pighi C, Cifaldi L, Zangari P, Bernardi S, Cursi L, Santilli V, Manno EC, Amodio D, Linardos G, Piccioni L, Barbieri MA, Perrotta D, Campana A, Donà D, Giaquinto C, Concato C, Brodin P, Rossi P, De Rossi A, Palma P. Virological and immunological features of SARS-COV-2 infected children with distinct symptomatology. Pediatr Allergy Immunol 2021; 32:1833-1842. [PMID: 34174102 PMCID: PMC8420243 DOI: 10.1111/pai.13585] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/21/2021] [Accepted: 05/28/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND Although SARS-CoV-2 immunizations have started in most countries, children are not currently included in the vaccination programs; thus, it remains crucial to define their anti-SARS-CoV-2 immune response in order to minimize the risk for other epidemic waves. This study sought to provide a description of the virology ad anti-SARS-CoV-2 immunity in children with distinct symptomatology. METHODS Between March and July 2020, we recruited 15 SARS-CoV-2 asymptomatic (AS) and 51 symptomatic (SY) children, stratified according to WHO clinical classification. We measured SARS-CoV-2 viral load using ddPCR and qPCR in longitudinally collected nasopharyngeal swab samples. To define anti-SARS-CoV-2 antibodies, we measured neutralization activity and total IgG load (DiaSorin). We also evaluated antigen-specific B and CD8+T cells, using a labeled S1+S2 protein and ICAM expression, respectively. Plasma protein profiling was performed with Olink. RESULTS Virological profiling showed that AS patients had lower viral load at diagnosis (p = .004) and faster virus clearance (p = .0002) compared with SY patients. Anti-SARS-CoV-2 humoral and cellular response did not appear to be associated with the presence of symptoms. AS and SY patients showed similar titers of SARS-CoV-2 IgG, levels of neutralizing activity, and frequency of Ag-specific B and CD8+ T cells, whereas pro-inflammatory plasma protein profile was found to be associated with symptomatology. CONCLUSION We demonstrated the development of anti-SARS-CoV-2 humoral and cellular response with any regard to symptomatology, suggesting the ability of both SY and AS patients to contribute toward herd immunity. The virological profiling of AS patients suggested that they have lower virus load associated with faster virus clearance.
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Affiliation(s)
- Nicola Cotugno
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Alessandra Ruggiero
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Giuseppe Rubens Pascucci
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Maria Raffaella Petrara
- Section of Oncology and Immunology, Department of Surgery, Oncology and Gastroenterology, Unit of Viral Oncology and AIDS Reference Center, University of Padova, Padova, Italy
| | - Chiara Pighi
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Loredana Cifaldi
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Paola Zangari
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Stefania Bernardi
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Laura Cursi
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Veronica Santilli
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Emma Concetta Manno
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Donato Amodio
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Giulia Linardos
- Division of Virology, Department of Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Livia Piccioni
- Division of Virology, Department of Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Daniela Perrotta
- Department of Pediatric Emergency, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Andrea Campana
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Daniele Donà
- Department of Mother and Child Health, University of Padova, Padova, Italy
| | - Carlo Giaquinto
- Department of Mother and Child Health, University of Padova, Padova, Italy
| | | | - Carlo Concato
- Division of Virology, Department of Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Petter Brodin
- Department of Woman's and Children Health, Karolinska Institutet, Stockholm, Sweden
| | - Paolo Rossi
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - Anita De Rossi
- Section of Oncology and Immunology, Department of Surgery, Oncology and Gastroenterology, Unit of Viral Oncology and AIDS Reference Center, University of Padova, Padova, Italy.,Istituto Oncologico Veneto (IOV)-IRCCS, Padova, Italy
| | - Paolo Palma
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
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26
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Petrara MR, Bonfante F, Costenaro P, Cantarutti A, Carmona F, Ruffoni E, Di Chiara C, Zanchetta M, Barzon L, Donà D, Da Dalt L, Bortolami A, Pagliari M, Plebani M, Rossi P, Cotugno N, Palma P, Giaquinto C, De Rossi A. Asymptomatic and Mild SARS-CoV-2 Infections Elicit Lower Immune Activation and Higher Specific Neutralizing Antibodies in Children Than in Adults. Front Immunol 2021; 12:741796. [PMID: 34659235 PMCID: PMC8515185 DOI: 10.3389/fimmu.2021.741796] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/10/2021] [Indexed: 12/24/2022] Open
Abstract
Background The immune response plays a pivotal role in dictating the clinical outcome in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected adults, but it is still poorly investigated in the pediatric population. Methods Of 209 enrolled subjects, 155 patients were confirmed by PCR and/or serology as having coronavirus disease 2019 (COVID-19). Blood samples were obtained at a median of 2.8 (interquartile, 2.1–3.7) and 6.1 (5.3–7.2) months after baseline (symptom onset and/or first positive virus detection). The immune profiles of activation, senescence, exhaustion, and regulatory cells were analyzed by flow cytometry. Neutralizing antibodies (nAbs) were detected by a plaque reduction neutralization test. In available nasopharyngeal swabs at baseline, SARS-CoV-2 levels were quantified by digital droplet PCR (ddPCR). Results Overall, COVID-19 patients had higher levels of immune activation, exhaustion, and regulatory cells compared to non-COVID-19 subjects. Within the COVID-19 group, activated and senescent cells were higher in adults than in children and inversely correlated with the nAbs levels. Conversely, Tregs and Bregs regulatory cells were higher in COVID-19 children compared to adults and positively correlated with nAbs. Higher immune activation still persisted in adults after 6 months of infection, while children maintained higher levels of regulatory cells. SARS-CoV-2 levels did not differ among age classes. Conclusions Adults displayed higher immune activation and lower production of anti-SARS-CoV-2 nAbs than children. The different immune response was not related to different viral load. The higher expression of regulatory cells in children may contribute to reduce the immune activation, thus leading to a greater specific response against the virus.
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Affiliation(s)
- Maria Raffaella Petrara
- Oncology and Immunology Section, Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy
| | - Francesco Bonfante
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Virology Laboratory, Legnaro, Italy
| | - Paola Costenaro
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padova, Padova, Italy
| | - Anna Cantarutti
- Laboratory of Healthcare Research and Pharmacoepidemiology, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milano, Italy
| | - Francesco Carmona
- Immunology and Diagnostic Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Elena Ruffoni
- Immunology and Diagnostic Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Costanza Di Chiara
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padova, Padova, Italy
| | - Marisa Zanchetta
- Immunology and Diagnostic Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - Luisa Barzon
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Daniele Donà
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padova, Padova, Italy
| | - Liviana Da Dalt
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padova, Padova, Italy
| | - Alessio Bortolami
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Virology Laboratory, Legnaro, Italy
| | - Matteo Pagliari
- Department of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Virology Laboratory, Legnaro, Italy
| | - Mario Plebani
- Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy.,Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Paolo Rossi
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata", Roma, Italy
| | - Nicola Cotugno
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata", Roma, Italy
| | - Paolo Palma
- Clinical and Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata", Roma, Italy
| | - Carlo Giaquinto
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padova, Padova, Italy
| | - Anita De Rossi
- Oncology and Immunology Section, Department of Surgery, Oncology and Gastroenterology, University of Padova, Padova, Italy.,Immunology and Diagnostic Molecular Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
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27
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West J, Röder J, Matrosovich T, Beicht J, Baumann J, Mounogou Kouassi N, Doedt J, Bovin N, Zamperin G, Gastaldelli M, Salviato A, Bonfante F, Kosakovsky Pond S, Herfst S, Fouchier R, Wilhelm J, Klenk HD, Matrosovich M. Characterization of changes in the hemagglutinin that accompanied the emergence of H3N2/1968 pandemic influenza viruses. PLoS Pathog 2021; 17:e1009566. [PMID: 34555124 PMCID: PMC8491938 DOI: 10.1371/journal.ppat.1009566] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 10/05/2021] [Accepted: 09/04/2021] [Indexed: 12/12/2022] Open
Abstract
The hemagglutinin (HA) of A/H3N2 pandemic influenza viruses (IAVs) of 1968 differed from its inferred avian precursor by eight amino acid substitutions. To determine their phenotypic effects, we studied recombinant variants of A/Hong Kong/1/1968 virus containing either human-type or avian-type amino acids in the corresponding positions of HA. The precursor HA displayed receptor binding profile and high conformational stability typical for duck IAVs. Substitutions Q226L and G228S, in addition to their known effects on receptor specificity and replication, marginally decreased HA stability. Substitutions R62I, D63N, D81N and N193S reduced HA binding avidity. Substitutions R62I, D81N and A144G promoted viral replication in human airway epithelial cultures. Analysis of HA sequences revealed that substitutions D63N and D81N accompanied by the addition of N-glycans represent common markers of avian H3 HA adaptation to mammals. Our results advance understanding of genotypic and phenotypic changes in IAV HA required for avian-to-human adaptation and pandemic emergence.
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Affiliation(s)
- Johanna West
- Institute of Virology, Philipps University, Marburg, Germany
| | - Juliane Röder
- Institute of Virology, Philipps University, Marburg, Germany
| | | | - Jana Beicht
- Institute of Virology, Philipps University, Marburg, Germany
| | - Jan Baumann
- Institute of Virology, Philipps University, Marburg, Germany
| | | | - Jennifer Doedt
- Institute of Virology, Philipps University, Marburg, Germany
| | - Nicolai Bovin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | - Gianpiero Zamperin
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Michele Gastaldelli
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Annalisa Salviato
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Sergei Kosakovsky Pond
- Institute for Genomics and Evolutionary Medicine, Temple University, Philadelphia, Pennsylvania, United States of America
| | - Sander Herfst
- Department of Viroscience, Erasmus Medical Centre, Rotterdam, Netherlands
| | - Ron Fouchier
- Department of Viroscience, Erasmus Medical Centre, Rotterdam, Netherlands
| | - Jochen Wilhelm
- Institute of Lung Health (ILH), Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, Germany
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28
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Bonfante F, Costenaro P, Cantarutti A, Di Chiara C, Bortolami A, Petrara MR, Carmona F, Pagliari M, Cosma C, Cozzani S, Mazzetto E, Di Salvo G, Da Dalt L, Palma P, Barzon L, Corrao G, Terregino C, Padoan A, Plebani M, De Rossi A, Donà D, Giaquinto C. Mild SARS-CoV-2 Infections and Neutralizing Antibody Titers. Pediatrics 2021; 148:peds.2021-052173. [PMID: 34158312 DOI: 10.1542/peds.2021-052173] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/14/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Recent evidence suggests that neutralizing antibodies (nAbs) to severe acute respiratory syndrome coronavirus 2 may persist over time; however, knowledge regarding pediatric subjects is limited. METHODS A single-center, prospective observational study was conducted on 57 family clusters of coronavirus disease 2019, including children of neonatal and pediatric age attending the University Hospital of Padua (Italy). For each patient, blood samples were collected for both the quantification of nAbs through a plaque reduction neutralizing test and the detection of antinucleocapsid-spike protein immunoglobulin G and/or immunoglobulin M. RESULTS We analyzed 283 blood samples collected from 152 confirmed coronavirus disease 2019 cases (82 parents and 70 children or older siblings of median age of 8 years, interquartile range: 4-13), presenting asymptomatic or with mildly symptomatic disease. Despite the decrease of immunoglobulin G over time, nAbs were found to persist up to 7 to 8 months in children, whereas adults recorded a modest declining trend. Interestingly, children aged <6 years, and, in particular, those aged <3 years, developed higher long-lasting levels of nAbs compared with older siblings and/or adults. CONCLUSIONS Mild and asymptomatic severe acute respiratory syndrome coronavirus 2 infections in family clusters elicited higher nAbs among children.
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Affiliation(s)
- Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy
| | - Paola Costenaro
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padua, Padua, Italy
| | - Anna Cantarutti
- Laboratory of Healthcare Research and Pharmacoepidemiology, Division of Biostatistics, Epidemiology and Public Health, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
| | - Costanza Di Chiara
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padua, Padua, Italy
| | - Alessio Bortolami
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy
| | - Maria Raffaella Petrara
- Department of Surgery, Oncology and Gastroenterology, Section of Oncology and Immunology, University of Padua, Padua, Italy
| | | | - Matteo Pagliari
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University Hospital of Padua, Padua, Italy
| | - Sandra Cozzani
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padua, Padua, Italy
| | - Eva Mazzetto
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy
| | - Giovanni Di Salvo
- Department for Women's and Children's Health, University of Padua, Italy
| | - Liviana Da Dalt
- Department for Women's and Children's Health, University of Padua, Italy
| | - Paolo Palma
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, Rome, Rome, Italy.,Department of Systems Medicine, Tor Vergata University of Rome, Rome, Italy
| | - Luisa Barzon
- Department of Molecular Medicine, University of Padua, Italy
| | - Giovanni Corrao
- National Centre for Healthcare Research and Pharmacoepidemiology, University of Milano-Bicocca, Milan, Italy.,Laboratory of Healthcare Research and Pharmacoepidemiology, Division of Biostatistics, Epidemiology and Public Health, Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
| | - Calogero Terregino
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Padua, Italy
| | - Andrea Padoan
- Department of Medicine-DIMED, University of Padua, Italy, Padua, Italy
| | - Mario Plebani
- Department of Medicine-DIMED, University of Padua, Italy, Padua, Italy.,Department of Laboratory Medicine, University Hospital of Padua, Padua, Italy
| | - Anita De Rossi
- Department of Surgery, Oncology and Gastroenterology, Section of Oncology and Immunology, University of Padua, Padua, Italy.,Istituto Oncologico Veneto, IRCCS, Padua, Italy
| | - Daniele Donà
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padua, Padua, Italy
| | - Carlo Giaquinto
- Division of Pediatric Infectious Diseases, Department for Women's and Children's Health, University of Padua, Padua, Italy
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29
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Berguido FJ, Burbelo PD, Bortolami A, Bonfante F, Wernike K, Hoffmann D, Balkema-Buschmann A, Beer M, Dundon WG, Lamien CE, Cattoli G. Serological Detection of SARS-CoV-2 Antibodies in Naturally-Infected Mink and Other Experimentally-Infected Animals. Viruses 2021; 13:1649. [PMID: 34452513 PMCID: PMC8402807 DOI: 10.3390/v13081649] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 02/07/2023] Open
Abstract
The recent emergence of SARS-CoV-2 in humans from a yet unidentified animal reservoir and the capacity of the virus to naturally infect pets, farmed animals and potentially wild animals has highlighted the need for serological surveillance tools. In this study, the luciferase immunoprecipitation systems (LIPS), employing the spike (S) and nucleocapsid proteins (N) of SARS-CoV-2, was used to examine the suitability of the assay for antibody detection in different animal species. Sera from SARS-CoV-2 naturally-infected mink (n = 77), SARS-CoV-2 experimentally-infected ferrets, fruit bats and hamsters and a rabbit vaccinated with a purified spike protein were examined for antibodies using the SARS-CoV-2 N and/or S proteins. From comparison with the known neutralization status of the serum samples, statistical analyses including calculation of the Spearman rank-order-correlation coefficient and Cohen's kappa agreement were used to interpret the antibody results and diagnostic performance. The LIPS immunoassay robustly detected the presence of viral antibodies in naturally infected SARS-CoV-2 mink, experimentally infected ferrets, fruit bats and hamsters as well as in an immunized rabbit. For the SARS-CoV-2-LIPS-S assay, there was a good level of discrimination between the positive and negative samples for each of the five species tested with 100% agreement with the virus neutralization results. In contrast, the SARS-CoV-2-LIPS-N assay did not consistently differentiate between SARS-CoV-2 positive and negative sera. This study demonstrates the suitability of the SARS-CoV-2-LIPS-S assay for the sero-surveillance of SARS-CoV-2 infection in a range of animal species.
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Affiliation(s)
- Francisco J. Berguido
- Joint FAO/IAEA Centre for Nuclear Applications in Food and Agriculture, Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, International Atomic Energy Agency Vienna International Centre, P.O. Box 100, 1400 Vienna, Austria; (W.G.D.); (C.E.L.); (G.C.)
| | - Peter D. Burbelo
- National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA;
| | - Alessio Bortolami
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (A.B.); (F.B.)
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (A.B.); (F.B.)
| | - Kerstin Wernike
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald, Insel Riems, Germany; (K.W.); (D.H.); (M.B.)
| | - Donata Hoffmann
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald, Insel Riems, Germany; (K.W.); (D.H.); (M.B.)
| | - Anne Balkema-Buschmann
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald, Insel Riems, Germany;
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institut, Südufer 10, 17493 Greifswald, Insel Riems, Germany; (K.W.); (D.H.); (M.B.)
| | - William G. Dundon
- Joint FAO/IAEA Centre for Nuclear Applications in Food and Agriculture, Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, International Atomic Energy Agency Vienna International Centre, P.O. Box 100, 1400 Vienna, Austria; (W.G.D.); (C.E.L.); (G.C.)
| | - Charles E. Lamien
- Joint FAO/IAEA Centre for Nuclear Applications in Food and Agriculture, Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, International Atomic Energy Agency Vienna International Centre, P.O. Box 100, 1400 Vienna, Austria; (W.G.D.); (C.E.L.); (G.C.)
| | - Giovanni Cattoli
- Joint FAO/IAEA Centre for Nuclear Applications in Food and Agriculture, Animal Production and Health Laboratory, Department of Nuclear Sciences and Applications, International Atomic Energy Agency Vienna International Centre, P.O. Box 100, 1400 Vienna, Austria; (W.G.D.); (C.E.L.); (G.C.)
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Deiana M, Mori A, Piubelli C, Perandin F, Treggiari D, Martini D, Chesini F, Angheben A, Bonfante F, Terregino C, Bisoffi Z, Pomari E. Impact of Full Vaccination with mRNA BNT162b2 on SARS-CoV-2 Infection: Genomic and Subgenomic Viral RNAs Detection in Nasopharyngeal Swab and Saliva of Health Care Workers. Microorganisms 2021; 9:1738. [PMID: 34442817 PMCID: PMC8400037 DOI: 10.3390/microorganisms9081738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/02/2021] [Accepted: 08/12/2021] [Indexed: 01/05/2023] Open
Abstract
SARS-CoV-2 infection was monitored in 1898 health care workers (HCWs) after receiving full vaccination with BNT162b2. Untill 30 June 2021, 10 HCWs tested positive for SARS-CoV-2 using real time RT-PCR, resulting in a 4-month cumulative incidence of 0.005%. The infection was mildly symptomatic in six (60%) and asymptomatic in four (40%) individuals. Among the infected HCWs, eight consenting individuals provided paired NPS and saliva during the course of infection, for the purpose of the analysis performed in the present study. Genomic and subgenomic viral RNAs were investigated using real-time RT-PCR in both biological specimens. The temporal profile of viral load was measured using ddPCR. Viral mutations were also analysed. Subgenomic viral RNA was detected in 8/8 (100%) NPS and in 6/8 (75%) saliva specimens at the baseline. The expression of subgenomic RNA was observed for up to 7 days in 3/8 (38%) symptomatic cases. Moreover, concordance was observed between NPS and saliva in the detection of viral mutations, and both N501Y and 69/70del (associated with the B.1.1.7 variant) were detected in the majority 6/8 (75%) of subjects, while the K417T mutation (associated with the P.1-type variants) was detected in 2/8 (25%) individuals. Overall, our findings report a low frequency of infected HCWs after full vaccination. It is, therefore, important to monitor the vaccinees in order to identify asymptomatic infected individuals. Saliva can be a surrogate for SARS-CoV-2 surveillance, particularly in social settings such as hospitals.
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Affiliation(s)
- Michela Deiana
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Antonio Mori
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Chiara Piubelli
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Francesca Perandin
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Davide Treggiari
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Davide Martini
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Fabio Chesini
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Andrea Angheben
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (F.B.); (C.T.)
| | - Calogero Terregino
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (F.B.); (C.T.)
| | - Zeno Bisoffi
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
- Department of Diagnostics and Public Health, University of Verona, 37129 Verona, Italy
| | - Elena Pomari
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, 37024 Verona, Italy; (M.D.); (C.P.); (F.P.); (D.T.); (D.M.); (F.C.); (A.A.); (Z.B.)
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31
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Marzoli F, Bortolami A, Pezzuto A, Mazzetto E, Piro R, Terregino C, Bonfante F, Belluco S. A systematic review of human coronaviruses survival on environmental surfaces. Sci Total Environ 2021; 778:146191. [PMID: 33714096 PMCID: PMC7927581 DOI: 10.1016/j.scitotenv.2021.146191] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/08/2021] [Accepted: 02/24/2021] [Indexed: 05/02/2023]
Abstract
The current pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has led people to implement preventive measures, including surface disinfection and use of alcohol-based hand gel, in order to avoid viral transmission via fomites. However, the role of surface transmission is still debated. The present systematic review aims to summarize all the evidence on surface survival of coronaviruses infecting humans. The analysis of 18 studies showed the longest coronavirus survival time is 28 days at room temperature (RT) on different surfaces: polymer banknotes, vinyl, steel, glass, and paper banknotes. Concerning SARS-CoV-2 human infection from contaminated surfaces, dangerous viral load on surfaces for up to 21 days was determined on polymer banknotes, steel, glass and paper banknotes. For viruses other than SARS-CoV-2, the longest period of survival was 14 days, recorded on glass. Environmental conditions can affect virus survival, and indeed, low temperatures and low humidity support prolonged survival of viruses on contaminated surfaces independently of surface type. Furthermore, it has been shown that exposure to sunlight significantly reduces the risk of surface transmission. Although studies are increasingly investigating the topic of coronavirus survival, it is difficult to compare them, given the methodology differences. For this reason, it is advisable to define a reference working protocol for virus survival trials, but, as an immediate measure, there is also a need for further investigations of coronavirus survival on surfaces.
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Affiliation(s)
- Filippo Marzoli
- Department of Food Safety, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy.
| | - Alessio Bortolami
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Alessandra Pezzuto
- Department of Food Safety, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Eva Mazzetto
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Roberto Piro
- Department of Food Safety, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Calogero Terregino
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Simone Belluco
- Department of Food Safety, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
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32
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Natale A, Mazzotta E, Mason N, Ceglie L, Mion M, Stefani A, Fincato A, Bonfante F, Bortolami A, Monne I, Bellinati L, Guadagno C, Quaranta E, Pastori A, Terregino C. SARS-Cov-2 Natural Infection in a Symptomatic Cat: Diagnostic, Clinical and Medical Management in a One Health Vision. Animals (Basel) 2021; 11:1640. [PMID: 34205893 PMCID: PMC8227534 DOI: 10.3390/ani11061640] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 02/07/2023] Open
Abstract
Despite the reported increase in SARS-CoV-2-infected pets, the description of the clinical features from natural infection and the medical follow up in symptomatic pets is still not sufficiently documented. This study reports the case of an indoor cat that displayed respiratory signs and a gastrointestinal syndrome, following the COVID-19 diagnosis of his owners. Thoracic radiographies were suggestive of bronchial pneumonia, while blood tests were indicative of a mild inflammatory process. Nasal and oropharyngeal swabs tested positive through RT-qPCR assays targeting SARS-CoV-2 genes 14 days after his owners tested positive for the virus. Nasal swabs persisted to be RT-qPCR positive after 31 days. Serology confirmed the presence of antibodies through ELISA, electrochemiluminescence analysis and plaque reduction neutralization test, recording a high antibody titre after 31 days. The cat improved after medical treatment and clinically recovered. This study suggests that exposure to SARS-CoV-2 could lead to a natural infection with bronchial pneumonia in cats along with a possible prolonged persistence of SARS-CoV-2 RNA in the upper airways, albeit at a low level. The cat developed neutralizing antibodies, reaching a high titre after 31 days. Further descriptions of SARS-CoV-2 naturally infected pets, their medical management and diagnostic findings would be useful to enhance knowledge about COVID-19 in susceptible animals.
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Affiliation(s)
- Alda Natale
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Elisa Mazzotta
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
- Department of Animal Medicine, Productions and Health (MAPS), University of Padova, 35020 Legnaro, Italy
| | | | - Letizia Ceglie
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Monica Mion
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Annalisa Stefani
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Alice Fincato
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Alessio Bortolami
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Laura Bellinati
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | | | - Erika Quaranta
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Ambra Pastori
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy; (E.M.); (L.C.); (M.M.); (A.S.); (A.F.); (F.B.); (A.B.); (I.M.); (L.B.); (E.Q.); (A.P.); (C.T.)
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Padoan A, Bonfante F, Cosma C, Di Chiara C, Sciacovelli L, Pagliari M, Bortolami A, Costenaro P, Musso G, Basso D, Giaquinto C, Plebani M. Analytical and clinical performances of a SARS-CoV-2 S-RBD IgG assay: comparison with neutralization titers. Clin Chem Lab Med 2021; 59:1444-1452. [PMID: 33855843 DOI: 10.1515/cclm-2021-0313] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/01/2021] [Indexed: 12/18/2022]
Abstract
OBJECTIVES SARS-CoV-2 serology presents an important role in several aspects of COVID-19 pandemic. Immunoassays performances have to be accurately evaluated and correlated with neutralizing antibodies. We investigated the analytical and clinical performances of a SARS-CoV-2 RBD IgG assay, automated on a high throughput platform, and the correlation of the antibodies (Ab) levels with the plaque reduction neutralization (PRNT50) Ab titers. METHODS A series of 546 samples were evaluated by SARS-CoV-2 RBD IgG assay (Snibe diagnostics), including 171 negative and 168 positive SARS-CoV-2 subjects and a further group of 207 subjects of the COVID-19 family clusters follow-up cohort. RESULTS Assay imprecision ranged from 3.98 to 12.18% being satisfactory at low and medium levels; linearity was excellent in all the measurement range. Considering specimens collected after 14 days post symptoms onset, overall sensitivity and specificity were 99.0 and 92.5%, respectively. A total of 281 leftover samples results of the PRNT50 test were available. An elevated correlation was obtained between the SARS-CoV-2 RBD IgG assay and the PRNT50 titer at univariate (ρ=0.689) and multivariate (ρ=0.712) analyses. CONCLUSIONS SARS-CoV-2 S-RBD IgG assay shows satisfactory analytical and clinical performances, and a strong correlation with sera neutralizing activity.
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Affiliation(s)
- Andrea Padoan
- Department of Medicine-DIMED, Medical School, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Costanza Di Chiara
- Department for Women's and Children's Health, Division of Pediatric Infectious Diseases, University of Padova, Padova, Italy
| | - Laura Sciacovelli
- Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Matteo Pagliari
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Alessio Bortolami
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Paola Costenaro
- Department for Women's and Children's Health, Division of Pediatric Infectious Diseases, University of Padova, Padova, Italy
| | - Giulia Musso
- Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Daniela Basso
- Department of Medicine-DIMED, Medical School, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Carlo Giaquinto
- Department for Women's and Children's Health, Division of Pediatric Infectious Diseases, University of Padova, Padova, Italy
| | - Mario Plebani
- Department of Medicine-DIMED, Medical School, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
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34
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Ades AE, Soriano-Arandes A, Alarcon A, Bonfante F, Thorne C, Peckham CS, Giaquinto C. Vertical transmission of Zika virus and its outcomes: a Bayesian synthesis of prospective studies. Lancet Infect Dis 2021; 21:537-545. [PMID: 33068528 PMCID: PMC7992034 DOI: 10.1016/s1473-3099(20)30432-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/06/2020] [Accepted: 05/05/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Prospective studies of Zika virus in pregnancy have reported rates of congenital Zika syndrome and other adverse outcomes by trimester. However, Zika virus can infect and damage the fetus early in utero, but clear before delivery. The true vertical transmission rate is therefore unknown. We aimed to provide the first estimates of underlying vertical transmission rates and adverse outcomes due to congenital infection with Zika virus by trimester of exposure. METHODS This was a Bayesian latent class analysis of data from seven prospective studies of Zika virus in pregnancy. We estimated vertical transmission rates, rates of Zika-virus-related and non-Zika-virus-related adverse outcomes, and the diagnostic sensitivity of markers of congenital infection. We allowed for variation between studies in these parameters and used information from women in comparison groups with no PCR-confirmed infection, where available. FINDINGS The estimated mean risk of vertical transmission was 47% (95% credible interval 26 to 76) following maternal infection in the first trimester, 28% (15 to 46) in the second, and 25% (13 to 47) in the third. 9% (4 to 17) of deliveries following infections in the first trimester had symptoms consistent with congenital Zika syndrome, 3% (1 to 7) in the second, and 1% (0 to 3) in the third. We estimated that in infections during the first, second, and third trimester, respectively, 13% (2 to 27), 3% (-5 to 14), and 0% (-7 to 11) of pregnancies had adverse outcomes attributable to Zika virus infection. Diagnostic sensitivity of markers of congenital infection was lowest in the first trimester (42% [18 to 72]), but increased to 85% (51 to 99) in trimester two, and 80% (42 to 99) in trimester three. There was substantial between-study variation in the risks of vertical transmission and congenital Zika syndrome. INTERPRETATION This preliminary analysis recovers the causal effects of Zika virus from disparate study designs. Higher transmission in the first trimester is unusual with congenital infections but accords with laboratory evidence of decreasing susceptibility of placental cells to infection during pregnancy. FUNDING European Union Horizon 2020 programme.
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Affiliation(s)
- A E Ades
- Department of Population Health Science, University of Bristol Medical School, Bristol, UK,Correspondence to: Prof A E Ades, Department of Population Health Science, University of Bristol Medical School, Bristol BS8 2PS, UK
| | - Antoni Soriano-Arandes
- Pediatric Infectious Diseases and Immunodeficiencies Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Ana Alarcon
- Department of Neonatology, Hospital Universitari Sant Joan de Déu, Sant Joan de Déu Research Institute, Barcelona, Spain
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Claire Thorne
- Population Policy and Practice Programme, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Catherine S Peckham
- Population Policy and Practice Programme, University College London Great Ormond Street Institute of Child Health, London, UK
| | - Carlo Giaquinto
- Dipartimento di Salute della Donna e del Bambino, Università degli Studi di Padova, Padua, Italy
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35
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Cotugno N, Ruggiero A, Bonfante F, Petrara MR, Zicari S, Pascucci GR, Zangari P, De Ioris MA, Santilli V, Manno EC, Amodio D, Bortolami A, Pagliari M, Concato C, Linardos G, Campana A, Donà D, Giaquinto C, Brodin P, Rossi P, De Rossi A, Palma P. Virological and immunological features of SARS-CoV-2-infected children who develop neutralizing antibodies. Cell Rep 2021; 34:108852. [PMID: 33730580 PMCID: PMC7962998 DOI: 10.1016/j.celrep.2021.108852] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/28/2020] [Accepted: 02/19/2021] [Indexed: 12/11/2022] Open
Abstract
As the global COVID-19 pandemic progresses, it is paramount to gain knowledge on adaptive immunity to SARS-CoV-2 in children to define immune correlates of protection upon immunization or infection. We analyzed anti-SARS-CoV-2 antibodies and their neutralizing activity (PRNT) in 66 COVID-19-infected children at 7 (±2) days after symptom onset. Individuals with specific humoral responses presented faster virus clearance and lower viral load associated with a reduced in vitro infectivity. We demonstrated that the frequencies of SARS-CoV-2-specific CD4+CD40L+ T cells and Spike-specific B cells were associated with the anti-SARS-CoV-2 antibodies and the magnitude of neutralizing activity. The plasma proteome confirmed the association between cellular and humoral SARS-CoV-2 immunity, and PRNT+ patients show higher viral signal transduction molecules (SLAMF1, CD244, CLEC4G). This work sheds lights on cellular and humoral anti-SARS-CoV-2 responses in children, which may drive future vaccination trial endpoints and quarantine measures policies.
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Affiliation(s)
- Nicola Cotugno
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy; Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata," 00185 Rome, Italy
| | - Alessandra Ruggiero
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
| | - Maria Raffaella Petrara
- Section of Oncology and Immunology, Department of Surgery, Oncology, and Gastroenterology, Unit of Viral Oncology and AIDS Reference Center, University of Padova, 35128 Padova, Italy
| | - Sonia Zicari
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Giuseppe Rubens Pascucci
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Paola Zangari
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | | | - Veronica Santilli
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - E C Manno
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Donato Amodio
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy; Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata," 00185 Rome, Italy
| | - Alessio Bortolami
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
| | - Matteo Pagliari
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy
| | - Carlo Concato
- Department of Laboratories, Division of Virology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Giulia Linardos
- Department of Laboratories, Division of Virology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Andrea Campana
- Academic Department of Pediatrics, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy
| | - Daniele Donà
- Department of Mother and Child Health, University of Padova, 35128 Padova, Italy
| | - Carlo Giaquinto
- Department of Mother and Child Health, University of Padova, 35128 Padova, Italy
| | - Petter Brodin
- Pediatric Rheumatology, Karolinska University Hospital, 17177 Stockholm, Sweden
| | - Paolo Rossi
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy; Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata," 00185 Rome, Italy
| | - Anita De Rossi
- Section of Oncology and Immunology, Department of Surgery, Oncology, and Gastroenterology, Unit of Viral Oncology and AIDS Reference Center, University of Padova, 35128 Padova, Italy; Istituto Oncologico Veneto (IOV)-IRCCS, 35128 Padova, Italy
| | - Paolo Palma
- Academic Department of Pediatrics (DPUO), Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, 00165 Rome, Italy; Chair of Pediatrics, Department of Systems Medicine, University of Rome "Tor Vergata," 00185 Rome, Italy.
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Belluco S, Mancin M, Marzoli F, Bortolami A, Mazzetto E, Pezzuto A, Favretti M, Terregino C, Bonfante F, Piro R. Prevalence of SARS-CoV-2 RNA on inanimate surfaces: a systematic review and meta-analysis. Eur J Epidemiol 2021; 36:685-707. [PMID: 34313896 PMCID: PMC8313411 DOI: 10.1007/s10654-021-00784-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/29/2021] [Indexed: 02/07/2023]
Abstract
Coronavirus disease (COVID-19) is a respiratory disease affecting many people and able to be transmitted through direct and perhaps indirect contact. Direct contact transmission, mediated by aerosols or droplets, is widely demonstrated, whereas indirect transmission is only supported by collateral evidence such as virus persistence on inanimate surfaces and data from other similar viruses. The present systematic review aims to estimate SARS-CoV-2 prevalence on inanimate surfaces, identifying risk levels according to surface characteristics. Data were obtained from studies in published papers collected from two databases (PubMed and Embase) with the last search on 1 September 2020. Included studies had to be papers in English, had to deal with coronavirus and had to consider inanimate surfaces in real settings. Studies were coded according to our assessment of the risk that the investigated surfaces could be contaminated by SARS-CoV-2. A meta-analysis and a metaregression were carried out to quantify virus RNA prevalence and to identify important factors driving differences among studies. Thirty-nine out of forty retrieved paper reported studies carried out in healthcare settings on the prevalence of virus RNA, five studies carry out also analyses through cell culture and six tested the viability of isolated viruses. Overall prevalences of SARS-CoV-2 RNA on high-, medium- and low-risk surfaces were 0.22 (CI95 [0.152-0.296]), 0.04 (CI95 [0.007-0.090]), and 0.00 (CI95 [0.00-0.019]), respectively. The duration surfaces were exposed to virus sources (patients) was the main factor explaining differences in prevalence.
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Affiliation(s)
- Simone Belluco
- Department of Food Safety, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy.
| | - Marzia Mancin
- Department of Food Safety, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Filippo Marzoli
- Department of Food Safety, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Alessio Bortolami
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Eva Mazzetto
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Alessandra Pezzuto
- Department of Food Safety, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Michela Favretti
- Department of Food Safety, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Calogero Terregino
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
| | - Roberto Piro
- Department of Food Safety, Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, Italy
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Padoan A, Bonfante F, Pagliari M, Bortolami A, Negrini D, Zuin S, Bozzato D, Cosma C, Sciacovelli L, Plebani M. Analytical and clinical performances of five immunoassays for the detection of SARS-CoV-2 antibodies in comparison with neutralization activity. EBioMedicine 2020; 62:103101. [PMID: 33160207 PMCID: PMC7640894 DOI: 10.1016/j.ebiom.2020.103101] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Reliable high-throughput serological assays for SARS-CoV-2 antibodies are urgently needed for the effective containment of the COVID-19 pandemic, as it is of crucial importance to understand the strength and duration of immunity after infection, and to make informed decisions concerning the activation or discontinuation of physical distancing restrictions. METHODS In 184 serum samples from 130 COVID-19 patients and 54 SARS-CoV-2 negative subjects, the analytical and clinical performances of four commercially available chemiluminescent assays (Abbott SARS-Cov-2 IgG, Roche Elecsys anti-SARS-CoV-2, Ortho SARS-CoV-2 total and IgG) and one enzyme-linked immunosorbent assay (Diesse ENZY-WELL SARS-CoV-2 IgG) were evaluated and compared with the neutralization activity achieved using the plaque reduction neutralization test (PRNT). FINDINGS Precision results ranged from 0.9% to 11.8% for all assays. Elecsys anti-SARS-CoV-2 demonstrated linearity of results at concentrations within the cut-off value. Overall, sensitivity ranged from 78.5 to 87.7%, and specificity, from 97.6 to 100%. On limiting the analysis to samples collected 12 days after onset of symptoms, the sensitivity of all assays increased, the highest value (95.2%) being obtained with VITRO Anti-SARS-CoV-2 Total and Architect SARS-CoV-2 IgG. The strongest PRNT50 correlation with antibody levels was obtained with ENZY-Well SARS-CoV-2 IgG (R2adj = 0.569). INTERPRETATION The results confirmed that all immunoassays had an excellent specificity, whereas sensitivity varied across immunoassays, depending strongly on the time interval between symptoms onset and sample collection. Further studies should be conducted to achieve a stronger correlation between antibody measurement and PRNT50 in order to obtain useful information for providing a better management of COVID-19 patients, effective passive antibody therapy, and developing a vaccine against the SARS-CoV-2 virus. FUNDING None.
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Affiliation(s)
- Andrea Padoan
- Department of Medicine-DIMED, Medical School, University of Padova, Italy; Department of Laboratory Medicine, University-Hospital of Padova, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Matteo Pagliari
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Alessio Bortolami
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Davide Negrini
- Department of Medicine-DIMED, Medical School, University of Padova, Italy
| | - Silvia Zuin
- Department of Medicine-DIMED, Medical School, University of Padova, Italy
| | - Dania Bozzato
- Department of Medicine-DIMED, Medical School, University of Padova, Italy; Department of Laboratory Medicine, University-Hospital of Padova, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padova, Italy
| | - Laura Sciacovelli
- Department of Laboratory Medicine, University-Hospital of Padova, Italy
| | - Mario Plebani
- Department of Medicine-DIMED, Medical School, University of Padova, Italy; Department of Laboratory Medicine, University-Hospital of Padova, Italy.
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Shittu I, Bianco A, Gado D, Mkpuma N, Sulaiman L, Laleye A, Gobbo F, Bortolami A, Bonfante F, Vakuru C, Meseko C, Fusaro A, Shamaki D, Alabi O, Terregino C, Joannis T. First detection of highly pathogenic H5N6 avian influenza virus on the African continent. Emerg Microbes Infect 2020; 9:886-888. [PMID: 32312185 PMCID: PMC7241522 DOI: 10.1080/22221751.2020.1757999] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Since 2013, highly pathogenic avian influenza (HPAI) subtype H5N6 (clade 2.3.4.4) has been reported in wild birds and poultry in Asia as well as in other parts of the globe. In Africa, information on the presence of this virus subtype is lacking. This study reports the first detection of a HPAI (H5N6) virus (clade 2.3.4.4b) in a duck from a live bird market in Nigeria, whose genome is closely related to the European 2017–2018 H5N6 viruses, indricating a recent virus introduction into the African continent.
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Affiliation(s)
| | - Alice Bianco
- Istituto Zooprofilattico Sperimentale delle Venezie, Padova, Italy
| | - Dorcas Gado
- National Veterinary Research Institute, Vom, Nigeria
| | | | | | - Agnes Laleye
- National Veterinary Research Institute, Vom, Nigeria
| | - Federica Gobbo
- Istituto Zooprofilattico Sperimentale delle Venezie, Padova, Italy
| | | | | | - Columba Vakuru
- Federal Ministry of Agriculture and Rural Development, Abuja, Nigeria
| | | | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie, Padova, Italy
| | - David Shamaki
- National Veterinary Research Institute, Vom, Nigeria
| | - Olaniran Alabi
- Federal Ministry of Agriculture and Rural Development, Abuja, Nigeria
| | | | - Tony Joannis
- National Veterinary Research Institute, Vom, Nigeria
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Padoan A, Bonfante F, Sciacovelli L, Cosma C, Basso D, Plebani M. Evaluation of an ELISA for SARS-CoV-2 antibody testing: clinical performances and correlation with plaque reduction neutralization titer. Clin Chem Lab Med 2020; 58:e247-e249. [PMID: 32772001 DOI: 10.1515/cclm-2020-1096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 07/20/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Andrea Padoan
- Department of Medicine-DIMED, Medical School, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Laura Sciacovelli
- Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Daniela Basso
- Department of Medicine-DIMED, Medical School, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
| | - Mario Plebani
- Department of Medicine-DIMED, Medical School, University of Padova, Padova, Italy.,Department of Laboratory Medicine, University-Hospital of Padova, Padova, Italy
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40
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Padoan A, Zuin S, Cosma C, Basso D, Plebani M, Bonfante F. Clinical performances of an ELISA for SARS-CoV-2 antibody assay and correlation with neutralization activity. Clin Chim Acta 2020; 510:654-655. [PMID: 32818490 PMCID: PMC7431325 DOI: 10.1016/j.cca.2020.08.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 11/18/2022]
Affiliation(s)
- Andrea Padoan
- Department of Laboratory Medicine, University-Hospital of Padova, Italy; Department of Medicine-DIMED, University of Padova, Italy
| | - Silvia Zuin
- Department of Laboratory Medicine, University-Hospital of Padova, Italy; Department of Medicine-DIMED, University of Padova, Italy
| | - Chiara Cosma
- Department of Laboratory Medicine, University-Hospital of Padova, Italy; Department of Medicine-DIMED, University of Padova, Italy
| | - Daniela Basso
- Department of Laboratory Medicine, University-Hospital of Padova, Italy; Department of Medicine-DIMED, University of Padova, Italy
| | - Mario Plebani
- Department of Laboratory Medicine, University-Hospital of Padova, Italy; Department of Medicine-DIMED, University of Padova, Italy.
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
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41
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Świętoń E, Fusaro A, Shittu I, Niemczuk K, Zecchin B, Joannis T, Bonfante F, Śmietanka K, Terregino C. Sub-Saharan Africa and Eurasia Ancestry of Reassortant Highly Pathogenic Avian Influenza A(H5N8) Virus, Europe, December 2019. Emerg Infect Dis 2020; 26:1557-1561. [PMID: 32568059 PMCID: PMC7323556 DOI: 10.3201/eid2607.200165] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We report detection of a highly pathogenic avian influenza A(H5N8) clade 2.3.4.4b virus in Europe. This virus was generated by reassortment between H5N8 subtype virus from sub-Saharan Africa and low pathogenicity avian influenza viruses from Eurasia.
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42
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Mazzetto E, Bortolami A, Fusaro A, Mazzacan E, Maniero S, Vascellari M, Beato MS, Schiavon E, Chiapponi C, Terregino C, Monne I, Bonfante F. Replication of Influenza D Viruses of Bovine and Swine Origin in Ovine Respiratory Explants and Their Attachment to the Respiratory Tract of Bovine, Sheep, Goat, Horse, and Swine. Front Microbiol 2020; 11:1136. [PMID: 32523585 PMCID: PMC7261881 DOI: 10.3389/fmicb.2020.01136] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 05/05/2020] [Indexed: 12/30/2022] Open
Abstract
Bovine is considered the main reservoir of influenza D virus (IDV), however, low levels of seropositivity in other farmed species suggest a wide range of potential hosts. Nevertheless, it is not clear whether this scenario is the result of rare spillover events upon contact with bovines, or a lack of adaptation of IDV to these hosts. Among these species, sheep represents a crucial component of the rural economy in many developing countries, but little is known about its role in the ecology of the disease. To evaluate the susceptibility of sheep to IDV viruses of different origin, we used ovine respiratory tissues as an ex vivo model and investigated the infective phenotype of two IDV strains isolated from either bovine (IDV-BOV) or swine (IDV-SW). For translatability purposes, we included a parainfluenza type 3 virus, as positive control, given its known respiratory tropism in sheep. We performed a timed evaluation of the viral infectivity, cell tropism and the associated histopathology, by means of tissue culture infectious dose assays on supernatants and histological/immunohistochemical analyses on explanted tissues, respectively. To further investigate differences in the phenotype of these two strains and to identify the potential targets of replication in the most commonly land-based farmed mammalian species, we carried out virus binding assays on histological sections of the respiratory tract of bovine, caprine, ovine, horse and swine. Our results demonstrated that IDV successfully replicates in nasal, tracheal and lung ovine tissues, suggesting a moderate susceptibility of this species to IDV infection. Interestingly, despite the high genetic identity of these strains, IDV- BOV consistently replicated to higher titers than IDV-SW in all respiratory tracts, suggesting IDV viruses might display considerable levels of variability in their phenotype when crossing the species barrier. Virus binding assays confirmed a superior affinity of the IDV viruses for the bovine upper respiratory tract, and a preference for the pharyngeal epithelium of small ruminants, indicating possible targets to improve the sensitivity of virological sampling for diagnostic and post-mortem purposes. Further pathogenesis and cross-species transmission studies will be necessary to elucidate the ecology of IDV and eventually allow the design of cost-effective surveillance strategies.
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Affiliation(s)
- Eva Mazzetto
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Alessio Bortolami
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Elisa Mazzacan
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Silvia Maniero
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Marta Vascellari
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Maria Serena Beato
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Eliana Schiavon
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Chiara Chiapponi
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna "Bruno Ubertini" (IZSLER), Brescia, Italy
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
| | - Francesco Bonfante
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), Legnaro, Italy
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Schwarz ER, Oliveira LJ, Bonfante F, Pu R, Pozor MA, Maclachlan NJ, Beachboard S, Barr KL, Long MT. Experimental Infection of Mid-Gestation Pregnant Female and Intact Male Sheep with Zika Virus. Viruses 2020; 12:v12030291. [PMID: 32156037 PMCID: PMC7150993 DOI: 10.3390/v12030291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/24/2020] [Accepted: 03/06/2020] [Indexed: 12/11/2022] Open
Abstract
Zika virus (ZIKV) is an arbovirus that causes birth defects, persistent male infection, and sexual transmission in humans. The purpose of this study was to continue the development of an ovine ZIKV infection model; thus, two experiments were undertaken. In the first experiment, we built on previous pregnant sheep experiments by developing a mid-gestation model of ZIKV infection. Four pregnant sheep were challenged with ZIKV at 57–64 days gestation; two animals served as controls. After 13–15 days (corresponding with 70–79 days of gestation), one control and two infected animals were euthanized; the remaining animals were euthanized at 20–22 days post-infection (corresponding with 77–86 days of gestation). In the second experiment, six sexually mature, intact, male sheep were challenged with ZIKV and two animals served as controls. Infected animals were serially euthanized on days 2–6 and day 9 post-infection with the goal of isolating ZIKV from the male reproductive tract. In the mid-gestation study, virus was detected in maternal placenta and spleen, and in fetal organs, including the brains, spleens/liver, and umbilicus of infected fetuses. Fetuses from infected animals had visibly misshapen heads and morphometrics revealed significantly smaller head sizes in infected fetuses when compared to controls. Placental pathology was evident in infected dams. In the male experiment, ZIKV was detected in the spleen, liver, testes/epididymides, and accessory sex glands of infected animals. Results from both experiments indicate that mid-gestation ewes can be infected with ZIKV with subsequent disruption of fetal development and that intact male sheep are susceptible to ZIKV infection and viral dissemination and replication occurs in highly vascular tissues (including those of the male reproductive tract).
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Affiliation(s)
- Erika R. Schwarz
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA; (E.R.S.); (R.P.); (S.B.)
| | - Lilian J. Oliveira
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA;
| | - Francesco Bonfante
- Laboratory of Experimental Animal Models, Division of Comparative Biomedical Sciences, Instituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Italy;
| | - Ruiyu Pu
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA; (E.R.S.); (R.P.); (S.B.)
| | - Malgorzata A. Pozor
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA;
| | - N. James Maclachlan
- Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA;
| | - Sarah Beachboard
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA; (E.R.S.); (R.P.); (S.B.)
| | - Kelli L. Barr
- Department of Biology, College of Arts and Sciences, Baylor University, Waco, TX 76798, USA;
| | - Maureen T. Long
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA; (E.R.S.); (R.P.); (S.B.)
- Correspondence:
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Greco GI, Ninivaggi C, Graceffa A, Novello S, Bonfante F, Di Stasio F, Zambotti E, Tavian T, Zorzi A, Sartori M, Occhipinti G, Granziera S, Nante G, Sergi G, Manzato E. P1564Atrial fibrillation and thromboembolic prophylaxis: focus on the frail oldest patient. how net clinical benefit influences anticoagulant therapy. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Atrial fibrillation is highly prevalent among the elderly population, which is also frequently prone to thromboembolic complications. Anticoagulant prophylaxis is underused in the elderly due to fear of bleeding, which tends to be more frequent and severe within this group. Randomized controlled trials and several observational studies have shown the comparative effectiveness of direct oral anticoagulant (DOAC) against vitamin K antagonists (VKA), and their superior safety, at least in terms of intracranial bleeding. However, for patients aged 85 or older, there is still insufficient literature, leaving unanswered the question of which prophylaxis to use.
Purpose
The aim of the study is to compare the incidence of established outcomes and to investigate the net clinical benefit between DOAC and VKA in patients aged ≥85 years.
Methods
A cohort of 553 outpatients from the real world began treatment using DOACs at our clinic. The prospective follow-up on average lasted 1.97 years. Main endpoints were stroke and systemic thromboembolism, major hemorrhage, myocardial infarction and mortality for all causes. A sample of the 160 patients aged ≥85 years was compared with the remaining younger ones and with a second cohort of 298 outpatients aged ≥85 years. Retrospectively analyzed, with follow-ups at our center, who started VKAs; the average time was 2.03 years. The “net clinical benefit” of DOACs against VKAs was calculated as the difference between thromboembolic events with VKAs and with DOACs, minus the difference (weighted by 1.5) between spontaneous intracranial bleeding with DOACs and VKAs.
Results
In terms of thromboembolic events, DOACs and VKAs (2.43% p-y vs. 1.82% p-y, p=0.975) have shown comparable efficacy in a higher risk sample (CHA2DS2-VASc score: 5.2 vs. 4.5; p<0.001). There were no differences in spontaneous intracranial hemorrhages (0.81% p-y vs. 1.16% p-y; p=0.419). Major bleeding was more frequent in DOACs (10.11% p-y vs. 4.13% p-y, p<0.05), although they are comparable if we consider patients in VKAs achieving a time in therapeutic range (TTR) <60%. Mortality, in all cases similar (13.75% p-y vs. 9.92% p-y; p=0.778), but was reduced in patients with VKAs therapy, with a TTR ≥60%. The net clinical benefit of DOACs compared to VKAs is noticeable in patients with a previous stroke or with CHA2DS2-VASc score <6, while VKAs may be more beneficial to patients with vascular disease or with CHA2DS2-VASc score ≥6.
Conclusions
DOACs are as effective in very old patients with atrial fibrillation compared to very old patients receiving VKAs, but they are associated with increased major bleeding. The same is true when compared with younger DOACs users. TTR, representing quality achieved by the anticoagulation with a VKA, can influence the comparison with DOACs. Considering ischemic strokes and spontaneous intracranial hemorrhages, there is however a net benefit for DOACs use in specific categories of elderly patients.
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Affiliation(s)
- G I Greco
- University Hospital of Padova, Padua, Italy
| | | | - A Graceffa
- University Hospital of Padova, Padua, Italy
| | - S Novello
- University Hospital of Padova, Padua, Italy
| | - F Bonfante
- University Hospital of Padova, Padua, Italy
| | | | - E Zambotti
- University Hospital of Padova, Padua, Italy
| | - T Tavian
- University Hospital of Padova, Padua, Italy
| | - A Zorzi
- University Hospital of Padova, Padua, Italy
| | - M Sartori
- University Hospital of Padova, Padua, Italy
| | | | | | - G Nante
- University Hospital of Padova, Padua, Italy
| | - G Sergi
- University Hospital of Padova, Padua, Italy
| | - E Manzato
- University Hospital of Padova, Padua, Italy
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Novello S, Graceffa A, Ninivaggi C, Greco GI, Bonfante F, Di Stasio F, Zambotti E, Zorzi A, Tavian T, Sartori M, Occhipinti G, Granziera S, Nante G, Sergi G, Manzato E. P6258Direct oral anticoagulants in non-valvular atrial fibrillation: accuracy of traditional bleeding scores in the elderly. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Due to the fear of increased risk of bleeding, anticoagulation treatment is underutilized in the prevention of stroke in elderly patients with non-valvular atrial fibrillation (NVAF). Although direct oral anticoagulants (DOAC) are safer than VKA, still little is known about the risk factors associated with bleeding in elderly patients treated with DOAC. Furthermore, it is still uncertain whether the risk scores that are currently used can serve to effectively identify higher bleeding risk in elderly subjects.
Purpose
The aim of this study was to identify predictors of bleeding in a cohort of elderly people affected by NVAF treated with DOAC, and to evaluate the accuracy of risk scores for bleeding used at present.
Methods
Data on outpatients aged ≥75 years, naïve for DOAC therapy, who started therapy with Dabigatran, Rivaroxaban, Apixaban or Edoxaban for the prevention of thromboembolism during FANV were analyzed. HASBLED, ATRIA, OBRI and ORBIT scores were calculated for each patient. Patients had follow-up for 12 months during which deaths, therapy discontinuation and adverse events such as thromboembolism and bleeding were reported. Potential predictors of bleeding and the predictive value of each bleeding score were tested using univariate Cox regression; testing accuracy was evaluated using ROC curves.
Results
A total of 291 patients (52.9% female, mean age 82.85±5.18 years) had a median follow-up time of 11 (10–12) months. The incidence rate of major bleeding was 4.7 per 100 patient-years, the rate of intracranial bleeding was 0.4 per 100 patient-years. Patients who had major bleeding were more often affected by heart failure (63.6% vs 25%; p=0.009) and thrombocytopenia (36.4% vs 7.4%; p=0,009). However in the multivariate analysis only heart failure remained statistically associated with major bleeding (HR 3.83, 95% CI 1.06–13.85; p=0.041). None of tested bleeding risk scores was able to predict major bleeding in our cohort. HASBLED and ORBIT scores were able to predict major and non-major clinically relevant bleeding (HR 1.32; 95% CI 1.01–1.71; p=0.042 and HR 1.20; 95% CI 1.00- 1.43; p=0.046); only the ORBIT score was found to be statistically significant, but with weak discriminatory power at ROC curves (AUC 0.59; 95% CI 0.51–0.68; p=0.041).
Conclusions
In our cohort of elderly patients aged 75 or older, anticoagulated for NVAF, heart failure history was the only effective predictor of major bleeding risk during DOAC treatment. None of the bleeding risk scores used currently have demonstrated a good discriminatory power in our cohort. As predictive factors of bleedings in DOAC-treated patients may not be the same as those for VKA-treated patients and those in elderly may also be differ in younger people, it calls for more investigation on the topic.
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Affiliation(s)
- S Novello
- University Hospital of Padova, Padua, Italy
| | - A Graceffa
- University Hospital of Padova, Padua, Italy
| | | | - G I Greco
- University Hospital of Padova, Padua, Italy
| | - F Bonfante
- University Hospital of Padova, Padua, Italy
| | | | - E Zambotti
- University Hospital of Padova, Padua, Italy
| | - A Zorzi
- University Hospital of Padova, Padua, Italy
| | - T Tavian
- University Hospital of Padova, Padua, Italy
| | - M Sartori
- University Hospital of Padova, Padua, Italy
| | | | | | - G Nante
- University Hospital of Padova, Padua, Italy
| | - G Sergi
- University Hospital of Padova, Padua, Italy
| | - E Manzato
- University Hospital of Padova, Padua, Italy
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46
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Rage E, Drissi Touzani C, Marusic C, Lico C, Göbel T, Bortolami A, Bonfante F, Salzano AM, Scaloni A, Fellahi S, El Houadfi M, Donini M, Baschieri S. Functional characterization of a plant-produced infectious bursal disease virus antigen fused to the constant region of avian IgY immunoglobulins. Appl Microbiol Biotechnol 2019; 103:7491-7504. [PMID: 31332484 DOI: 10.1007/s00253-019-09992-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/13/2019] [Accepted: 06/16/2019] [Indexed: 01/16/2023]
Abstract
Infectious bursal disease virus (IBDV) is the cause of an economically important highly contagious disease of poultry, and vaccines are regarded as the most beneficial interventions for its prevention. In this study, plants were used to produce a recombinant chimeric IBDV antigen for the formulation of an innovative subunit vaccine. The fusion protein (PD-FcY) was designed to combine the immunodominant projection domain (PD) of the viral structural protein VP2 with the constant region of avian IgY (FcY), which was selected to enhance antigen uptake by avian immune cells. The gene construct encoding the fusion protein was transiently expressed in Nicotiana benthamiana plants and an extraction/purification protocol was set up, allowing to reduce the contamination by undesired plant compounds/proteins. Mass spectrometry analysis of the purified protein revealed that the glycosylation pattern of the FcY portion was similar to that observed in native IgY, while in vitro assays demonstrated the ability of PD-FcY to bind to the avian immunoglobulin receptor CHIR-AB1. Preliminary immunization studies proved that PD-FcY was able to induce the production of protective anti-IBDV-VP2 antibodies in chickens. In conclusion, the proposed fusion strategy holds promises for the development of innovative low-cost subunit vaccines for the prevention of avian viral diseases.
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Affiliation(s)
- Emile Rage
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
| | - Charifa Drissi Touzani
- Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, IAV Hassan II, Rabat, Morocco
| | - Carla Marusic
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
| | - Chiara Lico
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
| | - Thomas Göbel
- Department of Veterinary Sciences, LMU Munich, München, Germany
| | - Alessio Bortolami
- Division of Comparative Biomedical Science, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Francesco Bonfante
- Division of Comparative Biomedical Science, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy
| | - Anna Maria Salzano
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, National Research Council, Napoli, Italy
| | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, ISPAAM, National Research Council, Napoli, Italy
| | - Siham Fellahi
- Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, IAV Hassan II, Rabat, Morocco
| | - Mohammed El Houadfi
- Unité de Pathologie Aviaire, Département de Pathologie et Santé Publique Vétérinaire, IAV Hassan II, Rabat, Morocco
| | - Marcello Donini
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy.
| | - Selene Baschieri
- Laboratory of Biotechnology, ENEA Casaccia Research Center, Rome, Italy
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47
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Awuni JA, Bianco A, Dogbey OJ, Fusaro A, Yingar DT, Salviato A, Ababio PT, Milani A, Bonfante F, Monne I. Avian influenza H9N2 subtype in Ghana: virus characterization and evidence of co-infection. Avian Pathol 2019; 48:470-476. [PMID: 31142135 DOI: 10.1080/03079457.2019.1624687] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Between November 2017 and February 2018, Ghanaian poultry producers reported to animal health authorities a dramatic increase in mortality rate and a relevant drop in egg production in several layer hen farms. Laboratory investigations revealed that the farms had been infected by the H9N2 influenza subtype. Virological and molecular characterization of the viruses identified in Ghana is described here for the first time. Whole genome analysis showed that the viruses belong to the G1-lineage and cluster with viruses identified in North and West Africa. The low pathogenicity of the virus was confirmed by the intravenous pathogenicity index assay. Further investigations revealed co-infection with infectious bronchitis virus of the GI-19 lineage, which very likely explained the severity of the disease observed during the outbreaks. The H9N2 outbreaks in Ghana highlight the importance of performing a differential diagnosis and an in-depth characterization of emerging viruses. In addition, the detection of a potentially zoonotic subtype, such as the H9N2, in a region where highly pathogenic avian influenza H5Nx is currently circulating highlights the urgency of implementing enhanced monitoring strategies and supporting improved investments in regional diagnostic technologies. RESEARCH HIGHLIGHTS Influenza A H9N2 subtype was detected in layer hens in Ghana in 2017-2018 Whole genome characterization of seven H9N2 viruses was performed Phylogenetic trees revealed that the H9N2 viruses belong to the G1 lineage The HA protein possesses the amino acid mutations 226L and 155T Co-infection with infectious bronchitis virus of the GI-19 lineage was identified.
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Affiliation(s)
| | - Alice Bianco
- Istituto Zooprofilattico Sperimentale delle Venezie , Legnaro , Italy
| | | | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie , Legnaro , Italy
| | | | - Annalisa Salviato
- Istituto Zooprofilattico Sperimentale delle Venezie , Legnaro , Italy
| | | | - Adelaide Milani
- Istituto Zooprofilattico Sperimentale delle Venezie , Legnaro , Italy
| | | | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie , Legnaro , Italy
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48
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Nguyen GT, Rauw F, Steensels M, Ingrao F, Bonfante F, Davidson I, Lambrecht B. Study of the underlying mechanisms and consequences of pathogenicity differences between two in vitro selected G1-H9N2 clones originating from a single isolate. Vet Res 2019; 50:18. [PMID: 30823888 PMCID: PMC6397504 DOI: 10.1186/s13567-019-0635-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 02/20/2019] [Indexed: 01/10/2023] Open
Abstract
The G1-H9N2 avian influenza virus (AIV) has caused significant economic losses in the commercial poultry industry due to reduced egg production and increased mortality. The field observations have shown that H9N2 viruses circulate and naturally mix with other pathogens and these simultaneous infections can exacerbate disease. To avoid an incorrect virus characterization, due to co-infection, isolates were purified by in vitro plaque assays. Two plaque purified G1-H9N2 clones, selected on different cell types, named MDCK-and CEF-clone in regards to the cell culture used, were studied in vivo, revealing two different virulence phenotypes. Subsequently, the underlying mechanisms were studied. Specifically, the phenotypical outcome of SPF bird infection by the two clones resulted in completely different clinical outcomes. These differences in clinical outcome were used to study the factors behind this output in more detail. Further studies demonstrated that the more severe disease outcome associated with the MDCK-clone involves a strong induction of pro-inflammatory cytokines and a lack of type I interferon production, whereas the mild disease outcome associated with the CEF-clone is related to a greater antiviral cytokine response. The immunosuppressive effect of the MDCK-clone on splenocytes was further demonstrated via ChIFN-γ lack production after ex vivo mitogenic stimulation. Genome sequencing of the two clones identified only four amino acid differences including three in the HA sequence (HA-E198A, HA-R234L, HA-E502D-H9 numbering) and one in the NA sequence (NA-V33M). In the present study, valuable insights on the mechanisms responsible for AI pathogenicity and molecular mechanisms of H9N2 infections in chicken were obtained while highlighting the impact of the cells viruses are grown on their virulence.
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Affiliation(s)
- Giang Thu Nguyen
- Avian Virology and Immunology Service, National Reference Laboratory for Avian Influenza and Newcastle Disease Virus, Sciensano, Uccle, Brussels, Belgium
| | - Fabienne Rauw
- Avian Virology and Immunology Service, National Reference Laboratory for Avian Influenza and Newcastle Disease Virus, Sciensano, Uccle, Brussels, Belgium
| | - Mieke Steensels
- Avian Virology and Immunology Service, National Reference Laboratory for Avian Influenza and Newcastle Disease Virus, Sciensano, Uccle, Brussels, Belgium
| | - Fiona Ingrao
- Avian Virology and Immunology Service, National Reference Laboratory for Avian Influenza and Newcastle Disease Virus, Sciensano, Uccle, Brussels, Belgium
| | | | - Irit Davidson
- Division of Avian and Diseases, Kimron Veterinary Institute, Bet Dagan, Israel
| | - Bénédicte Lambrecht
- Avian Virology and Immunology Service, National Reference Laboratory for Avian Influenza and Newcastle Disease Virus, Sciensano, Uccle, Brussels, Belgium.
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49
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Bonfante F, Mazzetto E, Zanardello C, Fortin A, Gobbo F, Maniero S, Bigolaro M, Davidson I, Haddas R, Cattoli G, Terregino C. A G1-lineage H9N2 virus with oviduct tropism causes chronic pathological changes in the infundibulum and a long-lasting drop in egg production. Vet Res 2018; 49:83. [PMID: 30157967 PMCID: PMC6116506 DOI: 10.1186/s13567-018-0575-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/20/2018] [Indexed: 12/17/2022] Open
Abstract
Since 1997, G1-lineage H9N2 avian influenza viruses have been circulating in Asia and later on in the Middle East, and they have been associated to mild respiratory disease, drops in egg production and moderate mortality in chickens, in particular in the presence of concurrent infections. In this study, we investigated the importance of the G1-lineage H9N2 A/chicken/Israel/1163/2011 virus as a primary pathogen in layers, analyzing its tropism and binding affinity for the oviduct tissues, and investigating the long-term impact on egg production. Besides causing a mild respiratory infection, the virus replicated in the oviduct of 60% of the hens causing different degrees of salpingitis throughout the organ, in particular at the level of the infundibulum, where the detection of the virus was associated with severe heterophilic infiltrate, and necrosis of the epithelium. Binding affinity assays confirmed that the infundibulum was the most receptive region of the oviduct. The drop in egg production was at its peek at 2 weeks post-infection (pi) (60% decrease) and continued up to 80 days pi (35% decrease). On day 80 pi, non-laying birds showed egg yolk peritonitis, and histopathological analyses described profound alteration of the infundibulum architecture, duct ectasia and thinning of the epithelium, while the rest of the oviduct and ovary appeared normal. Our results show that this H9N2 virus is a primary pathogen in layer hens, and that its replication in the infundibulum is responsible for acute and chronic lesions that limits the effective functionality of the oviduct, compromising the commercial life of birds.
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Affiliation(s)
- Francesco Bonfante
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy.
| | - Eva Mazzetto
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy
| | - Claudia Zanardello
- Histopathology Department, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy
| | - Andrea Fortin
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy
| | - Federica Gobbo
- Avian Medicine Laboratory and Mycoplasmas Unit, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy
| | - Silvia Maniero
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy
| | - Michela Bigolaro
- Histopathology Department, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy
| | - Irit Davidson
- Division of Avian Diseases, Kimron Veterinary Institute, 12, 50250, Bet Dagan, Israel
| | - Ruth Haddas
- Division of Avian Diseases, Kimron Veterinary Institute, 12, 50250, Bet Dagan, Israel
| | - Giovanni Cattoli
- Animal Production and Health Laboratory, Joint FAO/IAEA Division for Nuclear Applications in Food and Agriculture, International Atomic Energy Agency, Vienna International Centre, 100, 1400, Vienna, Austria
| | - Calogero Terregino
- Division of Comparative Biomedical Sciences, Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università, 10, 35020, Legnaro, Italy
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50
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Gardin Y, Palya V, Dorsey KM, El-Attrache J, Bonfante F, Wit SD, Kapczynski D, Kilany WH, Rauw F, Steensels M, Soejoedono RD. Experimental and Field Results Regarding Immunity Induced by a Recombinant Turkey Herpesvirus H5 Vector Vaccine Against H5N1 and Other H5 Highly Pathogenic Avian Influenza Virus Challenges. Avian Dis 2017; 60:232-7. [PMID: 27309060 DOI: 10.1637/11144-050815-resnote] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Vaccination against H5N1 highly pathogenic avian influenza (AI) virus (HPAIV) is one of the possible complementary means available for affected countries to control AI when the disease has become, or with a high risk of becoming, endemic. Efficacy of the vaccination against AI relies essentially, but not exclusively, on the capacity of the vaccine to induce immunity against the targeted virus (which is prone to undergo antigenic variations), as well as its capacity to overcome interference with maternal immunity transmitted by immunized breeding hens to their progeny. This property of the vaccine is a prerequisite for its administration at the hatchery, which assures higher and more reliable vaccine coverage of the populations than vaccination at the farm. A recombinant vector vaccine (Vectormune® AI), based on turkey herpesvirus expressing the hemagglutinin gene of an H5N1 HPAIV as an insert, has been used in several experiments conducted in different research laboratories, as well as in controlled field trials. The results have demonstrated a high degree of homologous and cross protection against different genetic clades of the H5N1 HPAIV. Furthermore, vaccine-induced immunity was not impaired by the presence of passive immunity, but on the contrary, cumulated with it for improved early protection. The demonstrated levels of protection against the different challenge viruses exhibited variations in terms of postchallenge mortality, as well as challenge virus shedding. The data presented here highlight the advantages of this vaccine as a useful and reliable tool to complement biosecurity and sanitary policies for better controlling the disease due to HPAIV of H5 subtypes, when the vaccination is applied as a control measure.
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Affiliation(s)
| | | | | | | | - Francesco Bonfante
- D Istituto Zooprofilattico Sperimentale delle Venezie, 35020 Legnaro, Padova, Italy
| | - Sjaak de Wit
- E Gezondheidsdienst voor Dieren Animal Health, 7400 AA Deventer, the Netherlands
| | - Darrell Kapczynski
- F Southeast Poultry Research Laboratory, United States Department of Agriculture, Athens, GA 30605
| | - Walid Hamdy Kilany
- G National Reference Laboratory for Veterinary Quality Control on Poultry Production RLQP, Animal Health Research Institute, Agriculture Research Center, Ministry of Agriculture, P.O. 12618 - Box 264, Dokki, Giza, Egypt
| | - Fabienne Rauw
- H Avian Virology and Immunology Unit, Veterinary and Agrochemical Research Centre, 1180 Ukkel, Brussels, Belgium
| | - Mieke Steensels
- H Avian Virology and Immunology Unit, Veterinary and Agrochemical Research Centre, 1180 Ukkel, Brussels, Belgium
| | - Retno D Soejoedono
- I Faculty of Veterinary Medicine, Bogor Agricultural University, 16680 Bogor, Indonesia
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