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Giardina FAM, Pellegrinelli L, Novazzi F, Vian E, Biscaro V, Russo C, Ranno S, Pagani E, Masi E, Tiberio C, Esposito M, Uceda Renteria S, Callegaro A, Piccirilli G, Lazzarotto T, Rovida F, Galli C, Lalle E, Maggi F, Mancini N, Acciarri C, Menzo S, Colacicco AM, Scarasciulli M, Piralla A, Baldanti F, Pariani E. Epidemiological impact of human adenovirus as causative agent of respiratory infections: An Italian multicentre retrospective study, 2022-2023. J Infect Chemother 2024:S1341-321X(24)00195-8. [PMID: 39043318 DOI: 10.1016/j.jiac.2024.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/15/2024] [Accepted: 07/18/2024] [Indexed: 07/25/2024]
Abstract
Human adenoviruses are the causative agents of 5-7% of viral respiratory infections, mainly caused by species B and C. They can infect all age groups, but children are usually at high risk of infections. Adenovirus epidemiology is well documented in East-Asian countries but little is known about adenovirus circulation in Europe in recent years. This multicentre retrospective study aimed to investigate the circulation and molecular epidemiology of hAdVs. This surveillance collected a total of 54463 respiratory specimens between January 1 2022 and June 20 2023 were tested for the presence of respiratory viruses. Our results showed that adenovirus was detected in 6.6% of all cases of acute respiratory infection included in the study and the median age of positive patients was 3 years, with male children in 1-2 years age group being the most affected. 43.5% of adenovirus cases were co-infected with at least one other respiratory virus, and rhinovirus was co-detected in 54% of cases. Genotyping of adenovirus allowed the identification of 6 different genotypes circulating in Italy, among which type B3 was the most frequently detected.
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Affiliation(s)
- Federica A M Giardina
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
| | - Laura Pellegrinelli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
| | - Federica Novazzi
- Department of Medicine and Innovation Technology, University of Insubria (DIMIT), Varese, Italy; Laboratory of Medical Microbiology and Virology University Hospital of Varese, Varese, Italy.
| | - Elisa Vian
- UOC Microbiology Treviso Hospital, Department of specialist and laboratory medicine, AULSS 2 La Marca, Italy.
| | - Valeria Biscaro
- UOC Microbiology Treviso Hospital, Department of specialist and laboratory medicine, AULSS 2 La Marca, Italy.
| | - Cristina Russo
- Virology and Mycobacteria UOS, Microbiology and Diagnostic Immunology UOC, Bambino Gesù Children Hospital IRCCS, Roma, Italy.
| | - Stefania Ranno
- Virology and Mycobacteria UOS, Microbiology and Diagnostic Immunology UOC, Bambino Gesù Children Hospital IRCCS, Roma, Italy.
| | - Elisabetta Pagani
- Laboratory of Microbiology and Virology, Provincial Hospital of Bolzano (SABES-ASDAA), Lehrkrankenhaus der Paracelsus Medizinischen Privatuniversität, Bolzano, Italy.
| | - Elisa Masi
- Laboratory of Microbiology and Virology, Provincial Hospital of Bolzano (SABES-ASDAA), Lehrkrankenhaus der Paracelsus Medizinischen Privatuniversität, Bolzano, Italy.
| | - Claudia Tiberio
- UOC Microbiology and Virology, Cotugno Hospital AORN dei Colli, Naples, Italy.
| | - Martina Esposito
- UOC Microbiology and Virology, Cotugno Hospital AORN dei Colli, Naples, Italy.
| | - Sara Uceda Renteria
- Microbiology and Virology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Annapaola Callegaro
- Microbiology and Virology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
| | - Giulia Piccirilli
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
| | - Tiziana Lazzarotto
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy; Section of Microbiology, Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.
| | - Francesca Rovida
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Microbiology and Virology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - Cristina Galli
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
| | - Eleonora Lalle
- Laboratory of Virology, National Institute for Infectious Diseases "Lazzaro Spallanzani" IRCCS, Rome, Italy.
| | - Fabrizio Maggi
- Laboratory of Virology, National Institute for Infectious Diseases "Lazzaro Spallanzani" IRCCS, Rome, Italy.
| | - Nicasio Mancini
- Department of Medicine and Innovation Technology, University of Insubria (DIMIT), Varese, Italy; Laboratory of Medical Microbiology and Virology University Hospital of Varese, Varese, Italy.
| | - Carla Acciarri
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy.
| | - Stefano Menzo
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy; Virology Unit, Azienda Ospedaliero Universitaria delle Marche, Ancona, Italy.
| | - Anna Maria Colacicco
- Virology Laboratory - Microbiology and Virology Unit - University of Bari - Policlinic of Bari, Bari, Italy.
| | - Maria Scarasciulli
- Virology Laboratory - Microbiology and Virology Unit - University of Bari - Policlinic of Bari, Bari, Italy.
| | - Antonio Piralla
- Microbiology and Virology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy; Microbiology and Virology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - Fausto Baldanti
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy; Microbiology and Virology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - Elena Pariani
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy.
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Zhang H, Wang H, An Y, Chen Z. Construction and application of adenoviral vectors. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 34:102027. [PMID: 37808925 PMCID: PMC10556817 DOI: 10.1016/j.omtn.2023.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Adenoviral vectors have been widely used as vaccine candidates or potential vaccine candidates against infectious diseases due to the convenience of genome manipulation, their ability to accommodate large exogenous gene fragments, easy access of obtaining high-titer of virus, and high efficiency of transduction. At the same time, adenoviral vectors have also been used extensively in clinical research for cancer gene therapy and treatment of diseases caused by a single gene defect. However, application of adenovirus also faces a series of challenges such as poor targeting, strong immune response against the vector itself, and they cannot be used repeatedly. It is believed that these problems will be solved gradually with further research and technological development in related fields. Here, we review the construction methods of adenoviral vectors, including "gutless" adenovirus and discuss application of adenoviral vectors as prophylactic vaccines for infectious pathogens and their application prospects as therapeutic vaccines for cancer and other kinds of chronic infectious disease such as human papillomavirus, hepatitis B virus, and hepatitis C virus.
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Affiliation(s)
- Hongbo Zhang
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Hongdan Wang
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Youcai An
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
| | - Ze Chen
- Department of Basic Research, Ab&B Bio-Tech CO., LTD. JS, Taizhou, Jiangsu, China
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Saha R, Majumdar A, Chaudhuri RD, Chatterjee A, Lo M, Dutta S, Chawla-Sarkar M. Molecular epidemiology of circulating human adenoviruses among acute respiratory infection patients seeking healthcare facilities in West Bengal, India. Virology 2023; 588:109912. [PMID: 37913611 DOI: 10.1016/j.virol.2023.109912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 11/03/2023]
Abstract
Human adenovirus (HAdV) causes acute respiratory infections leading to mortality in children. This study analyzes the circulating respiratory HAdV genotypes in West Bengal, India during 2018-2022 among symptomatic patients. The overall positivity rate was 6.8%, out of which 26.4% were co-infected with other respiratory viruses. Children aged 2 to 5 years were mostly infected. Phylogenetic analysis revealed that the recombinant HAdV-B type 7/3, which has remarkable outbreak potential, predominantly circulated in this region followed by the non-recombinant HAdV-B type 3/3. Moreover, the amino acid sequences encoded by both the hexon and fiber genes of these two circulating strains possessed a few mutations that mostly diverged from the prototype strain, although the divergence was less pronounced in case of the amino acids encoded by the fiber gene of HAdV-B type 3/3. Overall, the results underscore the need for continuous surveillance of respiratory HAdV types to combat future possible epidemics.
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Affiliation(s)
- Ritubrita Saha
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Agniva Majumdar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Ratul Datta Chaudhuri
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Ananya Chatterjee
- Regional Virus Research and Diagnostic Laboratory, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Mahadeb Lo
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Shanta Dutta
- Regional Virus Research and Diagnostic Laboratory, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India
| | - Mamta Chawla-Sarkar
- Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, Beliaghata, Kolkata, West Bengal, India.
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Zadheidar S, Yavarian J, Heydarifard Z, Nejati A, Sadeghi K, Ghavami N, Abbasi S, Shatizadeh Malekshahi S, Mokhtari-Azad T, Shafiei-Jandaghi NZ. Molecular epidemiology of human adenoviruses in children with and without respiratory symptoms: Preliminary findings from a case-control study. BMC Pediatr 2022; 22:583. [PMID: 36207696 PMCID: PMC9547415 DOI: 10.1186/s12887-022-03625-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/16/2022] [Accepted: 09/23/2022] [Indexed: 11/29/2022] Open
Abstract
Background Human adenovirus (HAdV) is an important viral agent in children which can lead to severe acute respiratory infection (SARI). Reports on molecular epidemiology of HAdVs in Iran are limited. This case-control study is conducted to compare the HAdV infection rate and molecular epidemiology among two groups of children with and without respiratory symptoms in Tehran, Iran during 2018–2019. Methods Nested PCR was performed on 120 oropharyngeal swabs taken from children aged five and younger with SARI who were hospitalized as the case group, and 120 oropharyngeal swabs were collected from children of the same age without respiratory symptoms as the control group. For positive samples Sanger sequencing was done and a phylogenetic tree was drawn afterward. Results Out of 120 cases, 8 (6.6%) tested positive for eachHAdV types including 6 (75%) HAdV-B7, 1 (12.5%) HAdV-C2, and 1 (12.5%) HAdV-C6. Among the control group, out of 120 samples, 8 (6.6%) were positive comprising 5 (62.5%) HAdV-C5, 2 (25%) HAdV-F41, and 1 (12.5%) HAdV-C6. Conclusion The present study indicated a different viewpoint of HAdV molecular epidemiology in which the genotypes were compared in children with and without respiratory symptoms. HAdV prevalence was equally common in cases and controls but different genotypes were detected in these two groups. HAdV-B7 was the main type among children with SARI, dissimilar to children with no respiratory symptoms where HAdV-C5 was the predominant type. Detecting HAdV-F in oropharyngeal swabs was a rare finding, which requires further investigation.
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Affiliation(s)
- Sevrin Zadheidar
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Heydarifard
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Nejati
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Kaveh Sadeghi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Nastaran Ghavami
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Simin Abbasi
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Talat Mokhtari-Azad
- Virology Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
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Liu SH, Hawkins BS, Ng SM, Ren M, Leslie L, Han G, Kuo IC. Topical pharmacologic interventions versus placebo for epidemic keratoconjunctivitis. Cochrane Database Syst Rev 2022; 3:CD013520. [PMID: 35238405 PMCID: PMC8892837 DOI: 10.1002/14651858.cd013520.pub2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Viruses cause about 80% of all cases of acute conjunctivitis. Human adenoviruses are believed to account for 65% to 90% of cases of viral conjunctivitis, or 20% to 75% of all causes of infectious keratoconjunctivitis worldwide. Epidemic keratoconjunctivitis (EKC) is a highly contagious subset of adenoviral conjunctivitis that has been associated with large outbreaks at military installations and at medical facilities. It is accompanied by severe conjunctival inflammation, watery discharge, and light sensitivity, and can lead to chronic complications such as corneal and conjunctival scarring with discomfort and poor quality of vision. Due to a lack of consensus on the efficacy of any pharmacotherapy to alter the clinical course of EKC, no standard of care exists, therefore many clinicians offer only supportive care. OBJECTIVES To assess the efficacy and safety of topical pharmacological therapies versus placebo, an active control, or no treatment for adults with EKC. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials (CENTRAL, which contains the Cochrane Eyes and Vision Trials Register; 2021, Issue 4); Ovid MEDLINE; Ovid Embase; Latin American and Caribbean Health Sciences database (LILACS); ClinicalTrials.gov; and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP), with no restrictions on language or year of publication. The date of the last search was 27 April 2021. SELECTION CRITERIA We included randomized controlled trials in which antiseptic agents, virustatic agents, or topical immune-modulating therapy was compared with placebo, an active control, or no treatment. DATA COLLECTION AND ANALYSIS We used standard Cochrane methodology. MAIN RESULTS We identified 10 studies conducted in Asia, Europe, the Middle East, and North Africa with a total of 892 participants who were treated for 7 days to 6 months and followed for 7 days up to 1.5 years. Study characteristics and risk of bias In most studies participants were predominantly men (range: 44% to 90%), with an age range from 9 to 82 years. Three studies reported information on trial registration, but we found no published study protocol. The majority of trials had small sample sizes, ranging from 18 to 90 participants enrolled per study; the only exception was a trial that enrolled 350 participants. We judged most studies to be at high or unclear risk of bias across risk of bias domains. Findings We included 10 studies of 892 EKC participants and estimated combined intervention effects in analyses stratified by steroid-containing control treatment or artificial tears. Six trials contributed to the comparisons of topical interventions (povidone-iodine [PVP-I], trifluridine, ganciclovir, dexamethasone plus neomycin) with artificial tears (or saline). Very low certainty evidence from two trials comparing trifluridine or ganciclovir with artificial tears showed inconsistent effects on shortening the mean duration of cardinal symptoms or signs of EKC. Low certainty evidence based on two studies (409 participants) indicated that participants treated with PVP-I alone more often experienced resolution of symptoms (risk ratio (RR) 1.15, 95% confidence interval (CI) 1.07 to 1.24) and signs (RR 3.19, 95% CI 2.29 to 4.45) during the first week of treatment compared with those treated with artificial tears. Very low certainty evidence from two studies (77 participants) suggested that PVP-I or ganciclovir prevented the development of subepithelial infiltrates (SEI) when compared with artificial tears within 30 days of treatment (RR 0.24, 95% CI 0.10 to 0.56). Four studies compared topical interventions (tacrolimus, cyclosporin A [CsA], trifluridine, PVP-I + dexamethasone) with topical steroids, and one trial compared fluorometholone (FML) plus polyvinyl alcohol iodine (PVA-I) with FML plus levofloxacin. Evidence from one trial showed that more eyes receiving PVP-I 1.0% plus dexamethasone 0.1% had symptoms resolved by day seven compared with those receiving dexamethasone alone (RR 9.00, 95% CI 1.23 to 66.05; 52 eyes). In two trials, fewer eyes treated with PVP-I or PVA-I plus steroid developed SEI within 15 days of treatment compared with steroid alone or steroid plus levofloxacin (RR 0.08, 95% CI 0.01 to 0.55; 69 eyes). One study found that CsA was no more effective than steroid for resolving SEI within four weeks of treatment (RR 0.84, 95% CI 0.67 to 1.06; N = 88). The evidence from trials comparing topical interventions with steroids was overall of very low level certainty. Adverse effects Antiviral or antimicrobial agents plus steroid did not differ from artificial tears in terms of ocular discomfort upon instillation (RR 9.23, 95% CI 0.61 to 140.67; N = 19). CsA and tacrolimus eye drops were associated with more cases of severe ocular discomfort, and sometimes intolerance, when compared with steroids (RR 4.64, 95% CI 1.15 to 18.71; 2 studies; N = 141). Compared with steroids, tacrolimus did not increase the risk of elevated intraocular pressure (RR 0.07, 95% CI 0 to 1.13; 1 study; N = 80), while trifluridine conferred no additional risk compared to tear substitute (RR 5.50, 95% CI 0.31 to 96.49; 1 study; N = 97). Overall, bacterial superinfection was rare (one in 23 CsA users) and not associated with use of the intervention steroid (RR 3.63, 95% CI 0.15 to 84.98; N = 51). The evidence for all estimates was of low or very low certainty. AUTHORS' CONCLUSIONS The evidence for the seven specified outcomes was of low or very low certainty due to imprecision and high risk of bias. The evidence that antiviral agents shorten the duration of symptoms or signs when compared with artificial tears was inconclusive. Low certainty evidence suggests that PVP-I alone resolves signs and symptoms by seven days relative to artificial tears. PVP-I or PVA-I, alone or with steroid, is associated with lower risks of SEI development than artificial tears or steroid (very low certainty evidence). The currently available evidence is insufficient to determine whether any of the evaluated interventions confers an advantage over steroids or artificial tears with respect to virus eradication or its spread to initially uninvolved fellow eyes. Future updates of this review should provide evidence of high-level certainty from trials with larger sample sizes, enrollment of participants with similar durations of signs and symptoms, and validated methods to assess short- and long-term outcomes.
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Affiliation(s)
- Su-Hsun Liu
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Barbara S Hawkins
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sueko M Ng
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Mark Ren
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Orthopedics, Columbia University Irving Medical Center, New York, New York, USA
| | - Louis Leslie
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Genie Han
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Irene C Kuo
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Lynch JP, Kajon AE. Adenovirus: Epidemiology, Global Spread of Novel Types, and Approach to Treatment. Semin Respir Crit Care Med 2021; 42:800-821. [PMID: 34918322 DOI: 10.1055/s-0041-1733802] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Adenoviruses (AdVs) are DNA viruses that typically cause mild infections involving the upper or lower respiratory tract, gastrointestinal tract, or conjunctiva. Rare manifestations of AdV infections include hemorrhagic cystitis, hepatitis, hemorrhagic colitis, pancreatitis, nephritis, or meningoencephalitis. AdV infections are more common in young children, due to lack of humoral immunity. Epidemics of AdV infection may occur in healthy children or adults in closed or crowded settings (particularly military recruits). The vast majority of cases are self-limited. However, the clinical spectrum is broad and fatalities may occur. Dissemination is more likely in patients with impaired immunity (e.g., organ transplant recipients, human immunodeficiency virus infection). Fatality rates for untreated severe AdV pneumonia or disseminated disease may exceed 50%. More than 100 genotypes and 52 serotypes of AdV have been identified and classified into seven species designated HAdV-A through -G. Different types display different tissue tropisms that correlate with clinical manifestations of infection. The predominant types circulating at a given time differ among countries or regions, and change over time. Transmission of novel strains between countries or across continents and replacement of dominant viruses by new strains may occur. Treatment of AdV infections is controversial, as prospective, randomized therapeutic trials have not been done. Cidofovir has been the drug of choice for severe AdV infections, but not all patients require treatment. Live oral vaccines are highly efficacious in reducing the risk of respiratory AdV infection and are in routine use in the military in the United States but currently are not available to civilians.
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Affiliation(s)
- Joseph P Lynch
- Division of Pulmonary, Critical Care Medicine, Allergy, and Clinical Immunology, Department of Internal Medicine, The David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Adriana E Kajon
- Infectious Disease Program, Lovelace Biomedical Research Institute, Albuquerque, New Mexico
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Wang C, Liu J, Mi Y, Chen J, Bi J, Chen Y. Clinical features and epidemiological analysis of respiratory human adenovirus infection in hospitalized children: a cross-sectional study in Zhejiang. Virol J 2021; 18:234. [PMID: 34844615 PMCID: PMC8628464 DOI: 10.1186/s12985-021-01705-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 11/17/2021] [Indexed: 11/26/2022] Open
Abstract
Background HAdV is one of the common pathogens in hospitalized children with acute respiratory infections (ARIs). We aim to describe the clinical and laboratory features, epidemiological characteristics, and HAdV species and/or types of inpatients with HAdV respiratory infections. Methods Respiratory samples were gathered from inpatients diagnosed ARIs in Children’s Hospital, Zhejiang University School of Medicine, and were detected by using Direct Immunofluorescence Assay from 2018 to 2019. PCR amplification and sequencing of the hypervariable zone of hexon gene were used for genotyping. The clinical and laboratory features, and HAdV genotyping, and epidemiological characteristic analysis were retrospectively performed. Results Of 7072 samples collected, 488 were identified as HAdV-positive. The overall detection rate was 6.9%. The peaked detection rate was 14.1% in January 2019. HAdV-positive cases with ARIs mainly appeared in winter. The detection rate was highest among children between 6 months and 2 years (8.7%, 123/1408). Clinical diagnosis included pneumonia (70.3%, 343/488), bronchitis (7.0%, 34/488) and acute upper respiratory tract infection (22.7%, 111/488). The common clinical manifestations were fever (93.4%, 456/488), cough (94.7%, 462/488), wheezing (26.2%, 128/488), and shortness of breath (14.8%, 72/488). 213 (43.6%) cases had co-infection and 138 (28.3%) cases had extrapulmonary symptoms. 96(19.7%) cases had intrapulmonary and intrathoracic complications.78 (16.0%) had an underlying condition, most of which were congenital heart diseases (20.5%, 16/78). The proportions of hyperpyrexia, duration of fever > 10 days, severe pneumonia, and wheezing in the co-infection group were remarkably higher than those in HAdV single-infection group (all p < 0.05). The proportions of duration of hospitalization, duration of fever > 10 days, wheezing, shortness of breath, change in level of consciousness, serosal fluids, extrapulmonary symptoms, co-infections and underlying diseases were significantly higher in severe pneumonia group than those in the mild pneumonia group (all p < 0.05). Four HAdV species were successfully identified in 155 cases and presented by 8 genotypes. HAdV-B3 (56.1%, 87/155) and HAdV -B7 (31.0%, 48/155) were the most predominant detected types and occurred commonly in different severity groups (p = 0.000), while, HAdV-B55 was detected only in the severe group. HAdV-B7’s detection rate in the severe pneumonia group was significantly higher than the non-severe pneumonia group. Conclusion HAdV detection rate is related to age and season. Bronchopneumonia accounts for about 70% HAdV-positive inpatients. The common clinical manifestations include hyperpyrexia, cough, wheezing, and shortness of breath. HAdV-B3 and HAdV-B7 are the most common types in children diagnosed with respiration infections.
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Affiliation(s)
- Caiyun Wang
- Department of Infectious Disease, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, 3333 Binsheng Road, Hangzhou, 310052, China.
| | - Juanjuan Liu
- Department of Infectious Disease, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, 3333 Binsheng Road, Hangzhou, 310052, China
| | - Yumei Mi
- Department of Infectious Disease, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, 3333 Binsheng Road, Hangzhou, 310052, China
| | - Jing Chen
- Department of Infectious Disease, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, 3333 Binsheng Road, Hangzhou, 310052, China
| | - Jing Bi
- Department of Otolaryngology-Head and Neck Surgery, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, 3333 Binsheng Road, Hangzhou, 310052, China
| | - Yinghu Chen
- Department of Infectious Disease, Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, 3333 Binsheng Road, Hangzhou, 310052, China
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Ljubin-Sternak S, Meštrović T, Lukšić I, Mijač M, Vraneš J. Seasonal Coronaviruses and Other Neglected Respiratory Viruses: A Global Perspective and a Local Snapshot. Front Public Health 2021; 9:691163. [PMID: 34291031 PMCID: PMC8287126 DOI: 10.3389/fpubh.2021.691163] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/04/2021] [Indexed: 02/02/2023] Open
Abstract
Respiratory viral infections are the leading cause of morbidity and mortality in the world; however, there are several groups of viruses that are insufficiently routinely sought for, and can thus be considered neglected from a diagnostic and clinical standpoint. Timely detection of seasonality of certain respiratory viruses (e.g., enveloped viruses such as seasonal coronaviruses) in the local context can aid substantially in targeted and cost-effective utilization of viral diagnostic approaches. For the other, non-enveloped and year-round viruses (i.e., rhinovirus, adenovirus, and bocavirus), a continuous virological diagnosis needs to be implemented in clinical laboratories to more effectively address the aetiology of respiratory infections, and assess the overall impact of these viruses on disease burden. While the coronavirus disease 2019 (COVID-19) pandemic is still actively unfolding, we aimed to emphasize the persistent role of seasonal coronaviruses, rhinoviruses, adenoviruses and bocaviruses in the aetiology of respiratory infections. Consequently, this paper concentrates on the burden and epidemiological trends of aforementioned viral groups on a global level, but also provides a snapshot of their prevalence patterns in Croatia in order to underscore the potential implications of viral seasonality. An overall global prevalence in respiratory tract infections was found to be between 0.5 and 18.4% for seasonal coronaviruses, between 13 and 59% for rhinoviruses, between 1 and 36% for human adenoviruses, and between 1 and 56.8% for human bocaviruses. A Croatian dataset on patients with respiratory tract infection and younger than 18 years of age has revealed a fairly high prevalence of rhinoviruses (33.4%), with much lower prevalence of adenoviruses (15.6%), seasonal coronaviruses (7.1%), and bocaviruses (5.3%). These insights represent a relevant discussion point in the context of the COVID-19 pandemic where the testing of non-SARS-CoV-2 viruses has been limited in many settings, making the monitoring of disease burden associated with other respiratory viruses rather difficult.
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Affiliation(s)
- Sunčanica Ljubin-Sternak
- Clinical Microbiology Department, Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia.,Medical Microbiology Department, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Tomislav Meštrović
- Clinical Microbiology and Parasitology Unit, Zora Profozić Polyclinic, Zagreb, Croatia.,University Centre Varaždin, University North, Varaždin, Croatia
| | - Ivana Lukšić
- Clinical Microbiology Department, Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia
| | - Maja Mijač
- Clinical Microbiology Department, Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia.,Medical Microbiology Department, University of Zagreb School of Medicine, Zagreb, Croatia
| | - Jasmina Vraneš
- Clinical Microbiology Department, Andrija Štampar Teaching Institute of Public Health, Zagreb, Croatia.,Medical Microbiology Department, University of Zagreb School of Medicine, Zagreb, Croatia
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9
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Marcone DN, Culasso ACA, Reyes N, Kajon A, Viale D, Campos RH, Carballal G, Echavarria M. Genotypes and phylogenetic analysis of adenovirus in children with respiratory infection in Buenos Aires, Argentina (2000-2018). PLoS One 2021; 16:e0248191. [PMID: 33684131 PMCID: PMC7939361 DOI: 10.1371/journal.pone.0248191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 02/22/2021] [Indexed: 11/18/2022] Open
Abstract
Human adenoviruses (HAdV) are one of the most frequent causes of respiratory infections around the world, causing mild to severe disease. In Argentina, many studies focused on the association of HAdV respiratory infection with severe disease and fatal outcomes leading to the discovery in 1984 of a genomic variant 7h associated with high fatality. Although several molecular studies reported the presence of at least 4 HAdV species (B, C, D and E) in Argentina, few sequences were available in the databases. In this study, sequences from the hexon gene region were obtained from 141 patients as a first approach to assess the genetic diversity of HAdVs circulating in Buenos Aires, Argentina. Phylogenetic analysis of these sequences and others recovered from public databases confirmed the circulation of the four above-mentioned species represented by 11 genotypes, with predominance in species B and C and shifts in their proportion in the studied period (2000 to 2018). The variants detected in Argentina, for most of the genotypes, were similar to those already described in other countries. However, uncommon lineages belonging to genotypes C2, C5 and E4 were detected, which might indicate the circulation of local variants and will deserve further studies of whole-genome sequences.
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Affiliation(s)
- Débora N. Marcone
- Unidad de Virología, Centro de Educación Médica e Investigaciones Clínicas (CEMIC) Hospital Universitario, Ciudad de Buenos Aires, Argentina
- Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Andrés C. A. Culasso
- Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Noelia Reyes
- Unidad de Virología, Centro de Educación Médica e Investigaciones Clínicas (CEMIC) Hospital Universitario, Ciudad de Buenos Aires, Argentina
| | - Adriana Kajon
- Infectious Disease Program, Lovelace Respiratory Research Institute, Albuquerque, NM, United States of America
| | - Diana Viale
- Departamento de Microbiología, Hospital Prof. Dr. Juan P. Garrahan, Ciudad de Buenos Aires, Argentina
| | - Rodolfo H. Campos
- Departamento de Microbiología, Inmunología y Biotecnología, Cátedra de Virología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Guadalupe Carballal
- Unidad de Virología, Centro de Educación Médica e Investigaciones Clínicas (CEMIC) Hospital Universitario, Ciudad de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Marcela Echavarria
- Unidad de Virología, Centro de Educación Médica e Investigaciones Clínicas (CEMIC) Hospital Universitario, Ciudad de Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- * E-mail:
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10
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Bots ST, Hoeben RC. Non-Human Primate-Derived Adenoviruses for Future Use as Oncolytic Agents? Int J Mol Sci 2020; 21:ijms21144821. [PMID: 32650405 PMCID: PMC7404033 DOI: 10.3390/ijms21144821] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/02/2020] [Accepted: 07/06/2020] [Indexed: 12/15/2022] Open
Abstract
Non-human primate (NHP)-derived adenoviruses have formed a valuable alternative for the use of human adenoviruses in vaccine development and gene therapy strategies by virtue of the low seroprevalence of neutralizing immunity in the human population. The more recent use of several human adenoviruses as oncolytic agents has exhibited excellent safety profiles and firm evidence of clinical efficacy. This proffers the question whether NHP-derived adenoviruses could also be employed for viral oncolysis in human patients. While vaccine vectors are conventionally made as replication-defective vectors, in oncolytic applications replication-competent viruses are used. The data on NHP-derived adenoviral vectors obtained from vaccination studies can only partially support the suitability of NHP-derived adenoviruses for use in oncolytic virus therapy. In addition, the use of NHP-derived adenoviruses in humans might be received warily given the recent zoonotic infections with influenza viruses and coronaviruses. In this review, we discuss the similarities and differences between human- and NHP-derived adenoviruses in view of their use as oncolytic agents. These include their genome organization, receptor use, replication and cell lysis, modulation of the host’s immune responses, as well as their pathogenicity in humans. Together, the data should facilitate a rational and data-supported decision on the suitability of NHP-derived adenoviruses for prospective use in oncolytic virus therapy.
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11
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Ye F, Han Y, Zhu J, Li P, Zhang Q, Lin Y, Wang T, Lv H, Wang C, Wang C, Zhang J. First Identification of Human Adenovirus Subtype 21a in China With MinION and Illumina Sequencers. Front Genet 2020; 11:285. [PMID: 32318094 PMCID: PMC7155751 DOI: 10.3389/fgene.2020.00285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/09/2020] [Indexed: 12/03/2022] Open
Abstract
Human adenoviruses (HAdVs) have been demonstrated to cause a diversity of diseases among children and adults. The circulation of human adenovirus type 21 (HAdV21) has been mainly documented within closed environments in several countries. Nonetheless, respiratory infections or outbreaks due to HAdV21 have never been reported in China. MinION and Illumina platforms were employed to identify the potential pathogen from a throat swab. Discrepancies between MinION and Illumina sequencing were validated and corrected via polymerase chain reaction (PCR). Genomic characterization and recombinant event detection were then performed. Among the 35,466 high-quality MinION reads, a total of 5,999 reads (16.91%) could be aligned to HAdV21 reference genomes (genome sizes ≈35.3 kb), among which 20 had a length of >30 kb. A genome sequence assembled from MinION reads was further classified as HAdV subtype 21a. Random downsampling revealed as few as 500 nanopore reads could cover ≥96.49% of current genome. Illumina sequencing displayed good consistency (pairwise nucleotide identity = 99.91%) with MinION sequencing but with 31 discrepancies that were further validated and confirmed by PCR coupled with Sanger sequencing. Restriction enzymes such as BamHI and KpnI were able to distinguish the present genome from HAdV21 prototype and HAdV21b. Phylogenetic analysis employing whole-genome sequences placed our genome with members only from subtype 21a. Common features among HAdV21a strains were identified, including polymorphisms discovered in penton and 100 kDa hexon assembly–associated proteins and a recombinant event in the E4 gene. Using MinION and Illumina sequencers, we identified the first HAdV21a strain from China, which could provide key genomic data for disease control and epidemiological investigations.
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Affiliation(s)
- Fuqiang Ye
- Department of Disease Control and Prevention, Center for Disease Control and Prevention of Eastern Theater Command, Nanjing, China
| | - Yifang Han
- Department of Disease Control and Prevention, Center for Disease Control and Prevention of Eastern Theater Command, Nanjing, China
| | - Juanjuan Zhu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Peng Li
- Center for Infectious Disease Control, Center for Disease Control and Prevention of People's Liberation Army of China, Beijing, China
| | - Qi Zhang
- Department of Disease Control and Prevention, Center for Disease Control and Prevention of Eastern Theater Command, Nanjing, China
| | - Yanfeng Lin
- Center for Infectious Disease Control, Center for Disease Control and Prevention of People's Liberation Army of China, Beijing, China
| | - Taiwu Wang
- Department of Disease Control and Prevention, Center for Disease Control and Prevention of Eastern Theater Command, Nanjing, China
| | - Heng Lv
- Department of Disease Control and Prevention, Center for Disease Control and Prevention of Eastern Theater Command, Nanjing, China
| | - Changjun Wang
- Center for Infectious Disease Control, Center for Disease Control and Prevention of People's Liberation Army of China, Beijing, China
| | - Chunhui Wang
- Department of Disease Control and Prevention, Center for Disease Control and Prevention of Eastern Theater Command, Nanjing, China
| | - Jinhai Zhang
- Department of Disease Control and Prevention, Center for Disease Control and Prevention of Eastern Theater Command, Nanjing, China
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12
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Kuo IC, Ren M, Leviste KD, Hawkins BS, Lindsley KB. Topical pharmacologic interventions versus placebo for epidemic keratoconjunctivitis. Cochrane Database Syst Rev 2020. [DOI: 10.1002/14651858.cd013520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Irene C Kuo
- Wilmer Eye Institute, The Johns Hopkins University School of Medicine; Department of Ophthalmology; 4924 Campbell Blvd #100 Baltimore Maryland USA 21236
| | - Mark Ren
- The Johns Hopkins University School of Medicine; Wilmer Eye Institute; Baltimore Maryland USA
| | - Katherine D Leviste
- University of Miami Miller School of Medicine; Department of Ophthalmology, Bascom Palmer Eye Institute; 1638 NW 10th Avenue #822 Miami Florida USA 33136
| | - Barbara S Hawkins
- The Johns Hopkins University School of Medicine; Wilmer Eye Institute; Baltimore Maryland USA
| | - Kristina B Lindsley
- IBM Watson Health; Life Sciences, Oncology, & Genomics; Baltimore Maryland USA
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13
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Redli PM, Wanzenried A, Huder JB, Berger C, Berlinger L, Capaul R, Böni J, Zbinden A. Evaluation of the RIDA®GENE RT-PCR assays for detection of sapovirus, astrovirus, adenovirus, and rotavirus in stool samples of adults in Switzerland. Diagn Microbiol Infect Dis 2019; 96:114924. [PMID: 31757559 DOI: 10.1016/j.diagmicrobio.2019.114924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 10/05/2019] [Accepted: 10/29/2019] [Indexed: 12/15/2022]
Abstract
Sapovirus (SaV) and astrovirus (AstV) increasingly are recognized as cause of acute viral gastroenteritis (AGE). We evaluated the real-time RT-PCR assays RIDA®GENE SaV and viral stool panel II (RGN RT-PCR) for detection of SaV, AstV, adenovirus (AdV) F40/41 and rotavirus (RoV) in clinical stool samples (n = 69). Results were compared with reference singleplex RT-PCRs. The sensitivity for SaV, AstV and RoV are 100%, the specificity ranges from 98.1% to 100%. In 10 out of 11 AdV (all types) samples, the RGN RT-PCR for AdV F40/41 displayed negative results. Retrospectively, 196 stool specimens from adult patients previously tested negative for norovirus (NoV) were analyzed. In about 10% of NoV-negative stool samples, AdV (n = 9), RoV (n = 6), AstV (n = 3) or SaV (n = 3) were found. The RGN RT-PCR assays are useful for detection of enteric viruses other than NoV. This study emphasizes the need for further testing of NoV-negative stool samples in patients with AGE.
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Affiliation(s)
- Patrick M Redli
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland.
| | - Adrian Wanzenried
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland.
| | - Jon B Huder
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland.
| | - Christoph Berger
- Division of Infectious Diseases and Hospital Epidemiology, University Children's Hospital Zurich, Zurich, Switzerland.
| | | | - Riccarda Capaul
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland.
| | - Jürg Böni
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland.
| | - Andrea Zbinden
- Institute of Medical Virology, University of Zurich, Zurich, Switzerland.
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14
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Ison MG, Hirsch HH. Community-Acquired Respiratory Viruses in Transplant Patients: Diversity, Impact, Unmet Clinical Needs. Clin Microbiol Rev 2019; 32:e00042-19. [PMID: 31511250 PMCID: PMC7399564 DOI: 10.1128/cmr.00042-19] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Patients undergoing solid-organ transplantation (SOT) or allogeneic hematopoietic cell transplantation (HCT) are at increased risk for infectious complications. Community-acquired respiratory viruses (CARVs) pose a particular challenge due to the frequent exposure pre-, peri-, and posttransplantation. Although influenza A and B viruses have a top priority regarding prevention and treatment, recent molecular diagnostic tests detecting an array of other CARVs in real time have dramatically expanded our knowledge about the epidemiology, diversity, and impact of CARV infections in the general population and in allogeneic HCT and SOT patients. These data have demonstrated that non-influenza CARVs independently contribute to morbidity and mortality of transplant patients. However, effective vaccination and antiviral treatment is only emerging for non-influenza CARVs, placing emphasis on infection control and supportive measures. Here, we review the current knowledge about CARVs in SOT and allogeneic HCT patients to better define the magnitude of this unmet clinical need and to discuss some of the lessons learned from human influenza virus, respiratory syncytial virus, parainfluenzavirus, rhinovirus, coronavirus, adenovirus, and bocavirus regarding diagnosis, prevention, and treatment.
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Affiliation(s)
- Michael G Ison
- Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Hans H Hirsch
- Transplantation & Clinical Virology, Department of Biomedicine, University of Basel, Basel, Switzerland
- Clinical Virology, Laboratory Medicine, University Hospital Basel, Basel, Switzerland
- Infectious Diseases & Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
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15
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Aoki K, Gonzalez G, Hinokuma R, Yawata N, Tsutsumi M, Ohno S, Kitaichi N. Assessment of clinical signs associated with adenoviral epidemic keratoconjunctivitis cases in southern Japan between 2011 and 2014. Diagn Microbiol Infect Dis 2019; 95:114885. [PMID: 31607514 DOI: 10.1016/j.diagmicrobio.2019.114885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/26/2019] [Accepted: 08/05/2019] [Indexed: 01/03/2023]
Abstract
Adenoviral epidemic keratoconjunctivitis (EKC) is a major cause of ocular morbidity worldwide and specific antiviral therapies are not available. EKC is primarily caused by Human adenovirus D (HAdV-D) types 8, 37, 53, 54, 56 and 64. Considering the genomic variation in HAdV-D, we hypothesized that clinical signs could be differentiated by virus type. The hypothesis was retrospectively tested with clinical signs recorded from 250 patients with ocular infections visiting an ophthalmological clinic in southern Japan between 2011 and 2014. The results showed that conjunctival opacity, corneal epithelial disorders and pre-auricular lymphadenopathy, were more frequently associated with EKC than other ocular infections. Furthermore, HAdV types 8, 37 and 54, caused corneal complications and longer infections significantly more frequently than infections by types 53 and 56 (P < 0.05). Our descriptive results supported that symptoms severity vary with the infecting type, however, further research is needed to improve diagnosis of EKC.
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Affiliation(s)
- Koki Aoki
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan; Department of Ophthalmology, Health Sciences University of Hokkaido, Sapporo, Japan
| | - Gabriel Gonzalez
- Division of Bioinformatics, Research Center for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | | | - Nobuyo Yawata
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Singapore Eye Research Institute, Singapore; Duke-NUS Medical School, Singapore
| | - Masayuki Tsutsumi
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan; Department of Ophthalmology, Health Sciences University of Hokkaido, Sapporo, Japan
| | - Shigeaki Ohno
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan; Department of Ophthalmology, Health Sciences University of Hokkaido, Sapporo, Japan
| | - Nobuyoshi Kitaichi
- Department of Ophthalmology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan; Department of Ophthalmology, Health Sciences University of Hokkaido, Sapporo, Japan.
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16
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Lun JH, Crosbie ND, White PA. Genetic diversity and quantification of human mastadenoviruses in wastewater from Sydney and Melbourne, Australia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 675:305-312. [PMID: 31030137 DOI: 10.1016/j.scitotenv.2019.04.162] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 05/27/2023]
Abstract
Human mastadenoviruses (HAdVs) are DNA viruses that can cause a wide range of clinical diseases, including gastroenteritis, respiratory illnesses, conjunctivitis, and in more severe cases hepatitis, pancreatitis and disseminated diseases. HAdV infections are generally asymptomatic or self-limiting, but can cause adverse outcomes within vulnerable populations. Since most HAdV serotypes replicate within the human gastrointestinal tract, high levels of HAdV DNA are excreted into wastewater systems. In this study, we identified the genetic diversity of HAdV at a population level using wastewater samples collected from Sydney and Melbourne from 2016 to 2017, with the use of next generation sequencing (NGS) technologies. In addition, HAdV DNA levels were quantified using quantitative polymerase chain reaction (qPCR) based methods to better understand the health risks involved if wastewater contamination occurs. An average of 1.8 × 107 genome copies of HAdV DNA was detected in one litre of wastewater collected in Sydney and Melbourne, over the two-year study period. A total of six major groups of HAdV were identified in wastewater samples using MiSeq, which included 19 different serotypes. Of those, the most prevalent was F41 (83.5%), followed by F40 (11.0%) and A31 (3.7%). In contrast, five groups of HAdV were identified in clinical samples with F41 as the most dominant serotype, (52.5% of gastroenteritis cases), followed by C1 and C2 (each responsible for 15.0%), and B3 was the fourth most common serotype (7.5%). This study demonstrated the practicability of using amplicon based NGS to identify HAdV diversity and quantify HAdV genome levels in environmental water samples, as well as broadening our current understanding of circulating HAdV in the Australian population.
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Affiliation(s)
- Jennifer H Lun
- School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, NSW, Australia.
| | - Nicholas D Crosbie
- Melbourne Water Corporation, Docklands, VIC, Australia; School of Civil and Environmental Engineering, Faculty of Engineering, University of New South Wales, Sydney, NSW, Australia.
| | - Peter A White
- School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, NSW, Australia.
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