1
|
Carregaro RL, Roscani ANCP, Raimundo ACS, Ferreira L, Vanni T, da Graça Salomão M, Probst LF, Viscondi JYK. Immunogenicity and safety of inactivated quadrivalent influenza vaccine compared with the trivalent vaccine for influenza infection: an overview of systematic reviews. BMC Infect Dis 2023; 23:563. [PMID: 37644401 PMCID: PMC10463610 DOI: 10.1186/s12879-023-08541-0] [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: 04/19/2023] [Accepted: 08/16/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Influenza infection is a highly preventable transmissible viral disease associated with mild upper respiratory symptoms and more severe conditions such as lethal pneumonia. Studies have shown that a broader spectrum influenza vaccine could reduce influenza's burden of disease in low- and middle-income countries. A considerable number of systematic reviews reported that quadrivalent influenza vaccines are considered more effective compared to trivalent vaccines, hence, there is a need for an overview in order to synthesize the current evidence pertaining to the comparison between quadrivalent and trivalent inactivated influenza vaccines. OBJECTIVE The aim was to summarize the evidence from systematic reviews that investigated the immunogenicity and safety of the Influenza's inactivated quadrivalent vaccine (QIV) compared to the trivalent vaccine (TIV), in the general population. METHODS We searched articles up to December 2022 at: Web of Science, EMBASE, MEDLINE, Cochrane Library, and SCOPUS. The search strategy was conducted following the PICO model. We included systematic reviews comparing the primary outcomes of immunogenicity (seroprotection rate and seroconversion rate) and adverse events using risk ratios. The AMSTAR 2 and ROBIS were used for quality assessments, and GRADE was used for evidence certainty assessments. FINDINGS We included five systematic reviews, totalling 47,740 participants. The Quadrivalent Inactivated Influenza Vaccine (QIV) exhibited enhanced immunogenicity in the context of B-lineage mismatch when compared to the Trivalent Inactivated Influenza Vaccine (TIV). While the safety profile of QIV was found to be comparable to that of TIV, the QIV showed a higher incidence of solicited local pain among children and adolescents, as well as an increased frequency of local adverse events within the adult population. CONCLUSION Our findings suggest that the QIV provides a superior immunogenicity response compared to the TIV in all age groups evaluated, especially when a lineage mismatch occurred. The safety of QIV was considered similar to the TIV, with no serious or systemic solicited or unsolicited adverse events; tough pain at the injection site was greater for QIV. We recommend caution owing to the high risk of bias in the selection process and no protocol registration.
Collapse
Affiliation(s)
- Rodrigo Luiz Carregaro
- Center for Evidence and Health Technology Assessment (NETecS), Universidade de Brasília (UnB), Campus UnB Ceilândia, Centro Metropolitano, Ceilândia Sul, CEP: 72220-275, Brasília/DF, Brazil.
- Health Technology Assessment Unit, MBA in Health Technology Assessment, Oswaldo Cruz German Hospital (HAOC), São Paulo, Brazil.
| | - Alessandra N C P Roscani
- Universidade de Campinas (UNICAMP), Clinical Hospital Unity, Campinas, Brasil
- Health Technology Assessment Unit, MBA in Health Technology Assessment, Oswaldo Cruz German Hospital (HAOC), São Paulo, Brazil
| | - Augusto Cesar Sousa Raimundo
- Faculty of Dentistry, Universidade de Campinas (UNICAMP), Piracicaba, Brasil
- Health Technology Assessment Unit, MBA in Health Technology Assessment, Oswaldo Cruz German Hospital (HAOC), São Paulo, Brazil
| | - Larissa Ferreira
- Institute of Health Strategy Management of the Federal District, Department of Health of the Federal District (SES/DF), Brasília, Brazil
- Health Technology Assessment Unit, MBA in Health Technology Assessment, Oswaldo Cruz German Hospital (HAOC), São Paulo, Brazil
| | - Tazio Vanni
- Hospital de Base, Secretaria de Estado de Saúde do Distrito Federal, Brasília, Brazil
| | | | - Livia Fernandes Probst
- Health Technology Assessment Unit, MBA in Health Technology Assessment, Oswaldo Cruz German Hospital (HAOC), São Paulo, Brazil
| | - Juliana Yukari K Viscondi
- Health Technology Assessment Unit, MBA in Health Technology Assessment, Oswaldo Cruz German Hospital (HAOC), São Paulo, Brazil
| |
Collapse
|
2
|
da Costa JC, Siqueira MM, Brown D, Lopes JO, da Costa BC, Gama EL, Aguiar-Oliveira MDL. Vaccine Mismatches, Viral Circulation, and Clinical Severity Patterns of Influenza B Victoria and Yamagata Infections in Brazil over the Decade 2010-2020: A Statistical and Phylogeny-Trait Analyses. Viruses 2022; 14:1477. [PMID: 35891457 PMCID: PMC9321334 DOI: 10.3390/v14071477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/25/2022] [Accepted: 07/01/2022] [Indexed: 12/15/2022] Open
Abstract
Worldwide, infections by influenza viruses are considered a major public health challenge. In this study, influenza B vaccine mismatches and clinical aspects of Victoria and Yamagata infections in Brazil were assessed. Clinical samples were collected from patients suspected of influenza infection. In addition, sociodemographic, clinical, and epidemiological information were collected by the epidemiological surveillance teams. Influenza B lineages were determined by real-time RT-PCR and/or Sanger sequencing. In addition, putative phylogeny−trait associations were assessed by using the BaTS program after phylogenetic reconstruction by a Bayesian Markov Chain Monte Carlo method (BEAST software package). Over 2010−2020, B/Victoria and B/Yamagata-like lineages co-circulated in almost all seasonal epidemics, with B/Victoria predominance in most years. Vaccine mismatches between circulating viruses and the trivalent vaccine strains occurred in five of the eleven seasons (45.5%). No significant differences were identified in clinical presentation or disease severity caused by both strains, but subjects infected by B/Victoria-like viruses were significantly younger than their B/Yamagata-like counterparts (16.7 vs. 31.4 years, p < 0.001). This study contributes to a better understanding of the circulation patterns and clinical outcomes of B/Victoria- and B/Yamagata-like lineages in Brazil and advocate for the inclusion of a quadrivalent vaccine in the scope of the Brazilian National Immunization Program.
Collapse
Affiliation(s)
- Jaline Cabral da Costa
- Laboratory of Respiratory Virus and Measles, Oswaldo Cruz Institute, Oswaldo Cruz Foundation. Av. Brasil, 4365 Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil; (M.M.S.); (D.B.); (J.O.L.); (B.C.d.C.); (E.L.G.)
| | | | | | | | | | | | - Maria de Lourdes Aguiar-Oliveira
- Laboratory of Respiratory Virus and Measles, Oswaldo Cruz Institute, Oswaldo Cruz Foundation. Av. Brasil, 4365 Manguinhos, Rio de Janeiro 21040-360, RJ, Brazil; (M.M.S.); (D.B.); (J.O.L.); (B.C.d.C.); (E.L.G.)
| |
Collapse
|
3
|
BOCCALINI SARA, PARIANI ELENA, CALABRÒ GIOVANNAELISA, DE WAURE CHIARA, PANATTO DONATELLA, AMICIZIA DANIELA, LAI PIEROLUIGI, RIZZO CATERINA, AMODIO EMANUELE, VITALE FRANCESCO, CASUCCIO ALESSANDRA, DI PIETRO MARIALUISA, GALLI CRISTINA, BUBBA LAURA, PELLEGRINELLI LAURA, VILLANI LEONARDO, D’AMBROSIO FLORIANA, CAMINITI MARTA, LORENZINI ELISA, FIORETTI PAOLA, MICALE ROSANNATINDARA, FRUMENTO DAVIDE, CANTOVA ELISA, PARENTE FLAVIO, TRENTO GIACOMO, SOTTILE SARA, PUGLIESE ANDREA, BIAMONTE MASSIMILIANOALBERTO, GIORGETTI DUCCIO, MENICACCI MARCO, D’ANNA ANTONIO, AMMOSCATO CLAUDIA, LA GATTA EMANUELE, BECHINI ANGELA, BONANNI PAOLO. [Health Technology Assessment (HTA) of the introduction of influenza vaccination for Italian children with Fluenz Tetra ®]. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2021; 62:E1-E118. [PMID: 34909481 PMCID: PMC8639053 DOI: 10.15167/2421-4248/jpmh2021.62.2s1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- SARA BOCCALINI
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze, Firenze, Italia
| | - ELENA PARIANI
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano, Italia
- Centro Interuniversitario per la Ricerca sull'Influenza e le altre Infezioni Trasmissibili CIRI-IT, Italia
| | - GIOVANNA ELISA CALABRÒ
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
- VIHTALI (Value In Health Technology and Academy for Leadership & Innovation), spin off dell’Università Cattolica del Sacro Cuore, Roma, Italia
| | - CHIARA DE WAURE
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Perugia, Perugia, Italia
| | - DONATELLA PANATTO
- Centro Interuniversitario per la Ricerca sull'Influenza e le altre Infezioni Trasmissibili CIRI-IT, Italia
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Genova, Italia
| | - DANIELA AMICIZIA
- Centro Interuniversitario per la Ricerca sull'Influenza e le altre Infezioni Trasmissibili CIRI-IT, Italia
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Genova, Italia
| | - PIERO LUIGI LAI
- Centro Interuniversitario per la Ricerca sull'Influenza e le altre Infezioni Trasmissibili CIRI-IT, Italia
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Genova, Italia
| | - CATERINA RIZZO
- Area Funzionale Percorsi Clinici ed Epidemiologia, Ospedale Pediatrico Bambino Gesù, IRCCS, Roma, Italia
| | - EMANUELE AMODIO
- Dipartimento Promozione della Salute, Materno-Infantile, di Medicina Interna e Specialistica di Eccellenza “G. D'Alessandro”, Università degli Studi di Palermo, Palermo, Italia
| | - FRANCESCO VITALE
- Dipartimento Promozione della Salute, Materno-Infantile, di Medicina Interna e Specialistica di Eccellenza “G. D'Alessandro”, Università degli Studi di Palermo, Palermo, Italia
| | - ALESSANDRA CASUCCIO
- Dipartimento Promozione della Salute, Materno-Infantile, di Medicina Interna e Specialistica di Eccellenza “G. D'Alessandro”, Università degli Studi di Palermo, Palermo, Italia
| | - MARIA LUISA DI PIETRO
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - CRISTINA GALLI
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano, Italia
| | - LAURA BUBBA
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano, Italia
| | - LAURA PELLEGRINELLI
- Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano, Italia
| | - LEONARDO VILLANI
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - FLORIANA D’AMBROSIO
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - MARTA CAMINITI
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Perugia, Perugia, Italia
| | - ELISA LORENZINI
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Perugia, Perugia, Italia
| | - PAOLA FIORETTI
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Perugia, Perugia, Italia
| | | | - DAVIDE FRUMENTO
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Genova, Italia
| | - ELISA CANTOVA
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Genova, Italia
| | - FLAVIO PARENTE
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Genova, Italia
| | - GIACOMO TRENTO
- Dipartimento di Scienze della Salute, Università degli Studi di Genova, Genova, Italia
| | - SARA SOTTILE
- Università degli Studi di Trento, Trento, Italia
| | | | | | - DUCCIO GIORGETTI
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze, Firenze, Italia
| | - MARCO MENICACCI
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze, Firenze, Italia
| | - ANTONIO D’ANNA
- Dipartimento Promozione della Salute, Materno-Infantile, di Medicina Interna e Specialistica di Eccellenza “G. D'Alessandro”, Università degli Studi di Palermo, Palermo, Italia
| | - CLAUDIA AMMOSCATO
- Dipartimento Promozione della Salute, Materno-Infantile, di Medicina Interna e Specialistica di Eccellenza “G. D'Alessandro”, Università degli Studi di Palermo, Palermo, Italia
| | - EMANUELE LA GATTA
- Sezione di Igiene, Dipartimento Universitario di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Roma, Italia
| | - ANGELA BECHINI
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze, Firenze, Italia
| | - PAOLO BONANNI
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze, Firenze, Italia
| |
Collapse
|
4
|
Liu WD, Yeh CY, Shih MC, Sheng WH. Clinical manifestations and risk factors for mortality of patients with severe influenza during the 2016–2018 season. Int J Infect Dis 2020; 95:347-351. [DOI: 10.1016/j.ijid.2020.04.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/02/2020] [Accepted: 04/04/2020] [Indexed: 02/06/2023] Open
|
5
|
Hu Y, Shao M, Hu Y, Liang Q, Jia N, Chu K, Xu L, Li J, Li C, Zhu F. Immunogenicity and safety of an inactivated quadrivalent influenza vaccine: a randomized, double-blind, controlled phase III clinical trial in children aged 6-35 months in China. Hum Vaccin Immunother 2020; 16:1691-1698. [PMID: 32347785 DOI: 10.1080/21645515.2020.1721994] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Mismatch between circulating influenza B viruses and vaccine strains occurs frequently. In a randomized, double-blind, controlled phase III clinical study, healthy children aged 6-35 months were randomized into three groups at a ratio of 2:1:1, received two doses of quadrivalent influenza vaccines (QIVs) or licensed trivalent influenza vaccines (TIVs). The primary objective was to evaluate the non-inferiority immunogenicity of QIV compared with the two TIVs, containing B/Victoria or B/Yamagata strain. Safety information was collected for 28 days after each vaccination. Serious adverse events (SAEs) were monitored for 6 months after the second vaccination. A total of 2146 subjects (QIV: 1069, TIV-Vic: 540, TIV-Yam: 537) were enrolled in this study. QIV was found non-inferior to TIVs for shared strains (A/H1N1 and A/H3N2) and corresponding BY strain based on hemagglutination inhibition (HI) antibodies 28 days after the second dose of vaccination. The resulted geometric mean titer (GMT) ratios (QIV/TIV) were 0.98 (0.89, 1.07) for H1N1, 0.95 (0.85, 1.05) for H3N2 and 0.89 (0.81, 0.98) for BY. And the seroconversion rate differences (QIV-TIV) were -0.46% (-3.24%, 2.31%) for H1N1, -1.95% (-5.54%, 1.65%) for H3N2 and -3.58% (-8.11%, 0.95%) for BY. The BV strain in QIV did not reach the non-inferiority criteria, with GMT of 1:52.25 (vs. 1:61.02 of TIV-Vic) and seroconversion rate of 59.49% (vs. 66.85% of TIV-Vic). No increased safety concerns occurred in QIV group. Candidate QIV can provide good protection for children aged 6 to 35 months, and its immunogenicity and safety were proved. CLINICAL TRIALS REGISTRATION ClinicalTrials.gov number: NCT03859141.
Collapse
Affiliation(s)
- Yuemei Hu
- Clinical Trials Assessment Department, Jiangsu Provincial Center for Disease Control and Prevention , Nanjing, China
| | - Ming Shao
- Division of Respiratory Virus Vaccines, National Institutes for Food and Drug Control , Beijing, China
| | - Yuansheng Hu
- Clinical Research Department, Sinovac Biotech Co., LTD ., Beijing, China
| | - Qi Liang
- Clinical Trials Assessment Department, Jiangsu Provincial Center for Disease Control and Prevention , Nanjing, China
| | - Ningning Jia
- Clinical Research Department, Sinovac Biotech Co., LTD ., Beijing, China
| | - Kai Chu
- Clinical Trials Assessment Department, Jiangsu Provincial Center for Disease Control and Prevention , Nanjing, China
| | - Li Xu
- Quality Assurance Department, Sinovac Biotech Co., LTD ., Beijing, China
| | - Jing Li
- Quality Assurance Department, Sinovac Biotech Co., LTD ., Beijing, China
| | - Changgui Li
- Division of Respiratory Virus Vaccines, National Institutes for Food and Drug Control , Beijing, China
| | - Fengcai Zhu
- Clinical Trials Assessment Department, Jiangsu Provincial Center for Disease Control and Prevention , Nanjing, China
| |
Collapse
|
6
|
Rivas MJ, Alegretti M, Cóppola L, Ramas V, Chiparelli H, Goñi N. Epidemiology and Genetic Variability of Circulating Influenza B Viruses in Uruguay, 2012-2019. Microorganisms 2020; 8:E591. [PMID: 32325860 PMCID: PMC7232498 DOI: 10.3390/microorganisms8040591] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/31/2020] [Accepted: 04/05/2020] [Indexed: 02/07/2023] Open
Abstract
Influenza B viruses (IBV) are an important cause of morbidity and mortality during interpandemic periods in the human population. Two phylogenetically distinct IBV lineages, B/Yamagata and B/Victoria, co-circulate worldwide and they present challenges for vaccine strain selection. Until the present study, there was little information regarding the pattern of the circulating strains of IBV in Uruguay. A subset of positive influenza B samples from influenza-like illness (ILI) outpatients and severe acute respiratory illness (SARI) inpatients detected in sentinel hospitals in Uruguay during 2012-2019 were selected. The sequencing of the hemagglutinin (HA) and neuraminidase (NA) genes showed substitutions at the amino acid level. Phylogenetic analysis reveals the co-circulation of both lineages in almost all seasonal epidemics in Uruguay, and allows recognizing a lineage-level vaccine mismatch in approximately one-third of the seasons studied. The epidemiological results show that the proportion of IBV found in ILI was significantly higher than the observed in SARI cases across different groups of age (9.7% ILI, 3.2% SARI) and patients between 5-14 years constituted the majority (33%) of all influenza B infection (p < 0.05). Interestingly, we found that individuals >25 years were particularly vulnerable to Yamagata lineage infections.
Collapse
Affiliation(s)
- María José Rivas
- Centro Nacional de Referencia de Influenza, Unidad de Virología, Departamento de Laboratorios de Salud Pública, Ministerio de Salud, Montevideo 11600, Uruguay; (M.J.R.); (L.C.); (V.R.); (H.C.)
| | - Miguel Alegretti
- Departamento de Vigilancia en Salud, Ministerio de Salud, Montevideo 11200, Uruguay;
| | - Leticia Cóppola
- Centro Nacional de Referencia de Influenza, Unidad de Virología, Departamento de Laboratorios de Salud Pública, Ministerio de Salud, Montevideo 11600, Uruguay; (M.J.R.); (L.C.); (V.R.); (H.C.)
| | - Viviana Ramas
- Centro Nacional de Referencia de Influenza, Unidad de Virología, Departamento de Laboratorios de Salud Pública, Ministerio de Salud, Montevideo 11600, Uruguay; (M.J.R.); (L.C.); (V.R.); (H.C.)
| | - Héctor Chiparelli
- Centro Nacional de Referencia de Influenza, Unidad de Virología, Departamento de Laboratorios de Salud Pública, Ministerio de Salud, Montevideo 11600, Uruguay; (M.J.R.); (L.C.); (V.R.); (H.C.)
| | - Natalia Goñi
- Centro Nacional de Referencia de Influenza, Unidad de Virología, Departamento de Laboratorios de Salud Pública, Ministerio de Salud, Montevideo 11600, Uruguay; (M.J.R.); (L.C.); (V.R.); (H.C.)
| |
Collapse
|
7
|
Puzelli S, Di Martino A, Facchini M, Fabiani C, Calzoletti L, Di Mario G, Palmieri A, Affanni P, Camilloni B, Chironna M, D'Agaro P, Giannecchini S, Pariani E, Serra C, Rizzo C, Bella A, Donatelli I, Castrucci MR. Co-circulation of the two influenza B lineages during 13 consecutive influenza surveillance seasons in Italy, 2004-2017. BMC Infect Dis 2019; 19:990. [PMID: 31752738 PMCID: PMC6873537 DOI: 10.1186/s12879-019-4621-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 11/07/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Since 1985, two antigenically distinct lineages of influenza B viruses (Victoria-like and Yamagata-like) have circulated globally. Trivalent seasonal influenza vaccines contain two circulating influenza A strains but a single B strain and thus provide limited immunity against circulating B strains of the lineage not included in the vaccine. In this study, we describe the characteristics of influenza B viruses that caused respiratory illness in the population in Italy over 13 consecutive seasons of virological surveillance, and the match between the predominant influenza B lineage and the vaccine B lineage, in each season. METHODS From 2004 to 2017, 26,886 laboratory-confirmed influenza cases were registered in Italy, of which 18.7% were type B. Among them, the lineage of 2465 strains (49%) was retrieved or characterized in this study by a real-time RT-PCR assay and/or sequencing of the hemagglutinin (HA) gene. RESULTS Co-circulation of both B lineages was observed each season, although in different proportions every year. Overall, viruses of B/Victoria and B/Yamagata lineages caused 53.3 and 46.7% of influenza B infections, respectively. A higher proportion of infections with both lineages was detected in children, and there was a declining frequency of B/Victoria detections with age. A mismatch between the vaccine and the predominant influenza B lineage occurred in eight out of thirteen influenza seasons under study. Considering the seasons when B accounted for > 20% of all laboratory-confirmed influenza cases, a mismatch was observed in four out of six seasons. Phylogenetic analysis of the HA1 domain confirmed the co-circulation of both lineages and revealed a mixed circulation of distinct evolutionary viral variants, with different levels of match to the vaccine strains. CONCLUSIONS This study contributes to the understanding of the circulation of influenza B viruses in Italy. We found a continuous co-circulation of both B lineages in the period 2004-2017, and determined that children were particularly vulnerable to Victoria-lineage influenza B virus infections. An influenza B lineage mismatch with the trivalent vaccine occurred in about two-thirds of cases.
Collapse
Affiliation(s)
- Simona Puzelli
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy.
| | - Angela Di Martino
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Marzia Facchini
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Concetta Fabiani
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Laura Calzoletti
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Giuseppina Di Mario
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Annapina Palmieri
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | | | | | - Maria Chironna
- Department of Biomedical Science and Human Oncology, University of Bari, Bari, Italy
| | | | | | - Elena Pariani
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | | | - Caterina Rizzo
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Antonino Bella
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Isabella Donatelli
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | - Maria Rita Castrucci
- Department of Infectious Diseases, Istituto Superiore di Sanità (ISS), Viale Regina Elena 299, Rome, Italy
| | | |
Collapse
|
8
|
Tramuto F, Restivo V, Costantino C, Colomba GME, Maida CM, Casuccio A, Vitale F. Surveillance Data for Eight Consecutive Influenza Seasons in Sicily, Italy. Am J Trop Med Hyg 2019; 101:1232-1239. [PMID: 31571567 DOI: 10.4269/ajtmh.19-0059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Influenza A and B outbreaks occur each year with different activity and molecular patterns. To date, knowledge of seasonal epidemiology remains a prerequisite not only to put in place the most effective immunization strategy against influenza but also to identify population groups at higher risk of developing serious complications. A retrospective analysis of influenza surveillance data from 2010 to 2018 aimed to explore the epidemiology of influenza in Sicily, at the primary care and hospital level. Overall, 6,740 patients with acute respiratory infection were tested, of which 3,032 (45.0%) were positive for influenza. The relative proportion of type A and B viruses markedly varied across seasons. Type A similarly spreads among children and adults, whereas type B was more commonly identified among pediatric population aged 5-9 years. The median age of confirmed influenza cases differed by health-care setting, increasing according to disease severity (range: 8-54 years). Among influenza-confirmed cases, more than 80% of hospitalized patients had an underlying medical condition. Cardiovascular disease, lung disease, diabetes, and obesity were some of the most frequent. Overall, patients admitted to an intensive care unit were more likely to have multiple comorbidities and being infected with influenza infection strongly increased the risk of severe clinical outcomes. Understanding of the epidemiology of influenza and the molecular features of circulating viruses is of paramount importance to optimize prevention and control strategies. Knowledge of predictors for the occurrence of severe forms of the disease may help to address adequate preventive measures to high-risk population groups.
Collapse
Affiliation(s)
- Fabio Tramuto
- Department of Health Promotion Sciences Maternal and Infant Care, Internal Medicine and Medical Specialities "G. D'Alessandro"-Hygiene Section, University of Palermo, Palermo, Italy.,Clinical Epidemiology Unit, Regional Reference Laboratory for Molecular Surveillance of Influenza, University Hospital "Paolo Giaccone", Palermo, Italy
| | - Vincenzo Restivo
- Department of Health Promotion Sciences Maternal and Infant Care, Internal Medicine and Medical Specialities "G. D'Alessandro"-Hygiene Section, University of Palermo, Palermo, Italy
| | - Claudio Costantino
- Department of Health Promotion Sciences Maternal and Infant Care, Internal Medicine and Medical Specialities "G. D'Alessandro"-Hygiene Section, University of Palermo, Palermo, Italy
| | - Giuseppina Maria Elena Colomba
- Clinical Epidemiology Unit, Regional Reference Laboratory for Molecular Surveillance of Influenza, University Hospital "Paolo Giaccone", Palermo, Italy
| | - Carmelo Massimo Maida
- Clinical Epidemiology Unit, Regional Reference Laboratory for Molecular Surveillance of Influenza, University Hospital "Paolo Giaccone", Palermo, Italy.,Department of Health Promotion Sciences Maternal and Infant Care, Internal Medicine and Medical Specialities "G. D'Alessandro"-Hygiene Section, University of Palermo, Palermo, Italy
| | - Alessandra Casuccio
- Department of Health Promotion Sciences Maternal and Infant Care, Internal Medicine and Medical Specialities "G. D'Alessandro"-Hygiene Section, University of Palermo, Palermo, Italy
| | - Francesco Vitale
- Clinical Epidemiology Unit, Regional Reference Laboratory for Molecular Surveillance of Influenza, University Hospital "Paolo Giaccone", Palermo, Italy.,Department of Health Promotion Sciences Maternal and Infant Care, Internal Medicine and Medical Specialities "G. D'Alessandro"-Hygiene Section, University of Palermo, Palermo, Italy
| |
Collapse
|
9
|
Emukule GO, Otiato F, Nyawanda BO, Otieno NA, Ochieng CA, Ndegwa LK, Muturi P, Bigogo G, Verani JR, Muthoka PM, Hunsperger E, Chaves SS. The Epidemiology and Burden of Influenza B/Victoria and B/Yamagata Lineages in Kenya, 2012-2016. Open Forum Infect Dis 2019; 6:ofz421. [PMID: 31660376 PMCID: PMC6804754 DOI: 10.1093/ofid/ofz421] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/27/2019] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND The impact of influenza B virus circulation in Sub-Saharan Africa is not well described. METHODS We analyzed data from acute respiratory illness (ARI) in Kenya. We assessed clinical features and age-specific hospitalization and outpatient visit rates by person-years for influenza B/Victoria and B/Yamagata and the extent to which circulating influenza B lineages in Kenya matched the vaccine strain component of the corresponding season (based on Northern Hemisphere [October-March] and Southern Hemisphere [April-September] vaccine availability). RESULTS From 2012 to 2016, influenza B represented 31% of all influenza-associated ARIs detected (annual range, 13-61%). Rates of influenza B hospitalization and outpatient visits were higher for <5 vs ≥5 years. Among <5 years, B/Victoria was associated with pneumonia hospitalization (64% vs 44%; P = .010) and in-hospital mortality (6% vs 0%; P = .042) compared with B/Yamagata, although the mean annual hospitalization rate for B/Victoria was comparable to that estimated for B/Yamagata. The 2 lineages co-circulated, and there were mismatches with available trivalent influenza vaccines in 2/9 seasons assessed. CONCLUSIONS Influenza B causes substantial burden in Kenya, particularly among children aged <5 years, in whom B/Victoria may be associated with increased severity. Our findings suggest a benefit from including both lineages when considering influenza vaccination in Kenya.
Collapse
Affiliation(s)
- Gideon O Emukule
- Centers for Disease Control and Prevention - Kenya Country Office, Nairobi, Kenya
| | | | | | - Nancy A Otieno
- Kenya Medical Research Institute, Kisumu and Nairobi, Kenya
| | | | - Linus K Ndegwa
- Centers for Disease Control and Prevention - Kenya Country Office, Nairobi, Kenya
| | | | - Godfrey Bigogo
- Kenya Medical Research Institute, Kisumu and Nairobi, Kenya
| | - Jennifer R Verani
- Centers for Disease Control and Prevention - Kenya Country Office, Nairobi, Kenya
| | | | - Elizabeth Hunsperger
- Centers for Disease Control and Prevention - Kenya Country Office, Nairobi, Kenya
| | - Sandra S Chaves
- Centers for Disease Control and Prevention - Kenya Country Office, Nairobi, Kenya
- Influenza Division, National Center for Immunization and Respiratory Diseases, US Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| |
Collapse
|
10
|
Cell-Based Quadrivalent Inactivated Influenza Virus Vaccine (Flucelvax ® Tetra/Flucelvax Quadrivalent ®): A Review in the Prevention of Influenza. Drugs 2019; 79:1337-1348. [PMID: 31372959 PMCID: PMC6874518 DOI: 10.1007/s40265-019-01176-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Manufacturing influenza virus vaccines using a mammalian cell line rather than embryonated chicken eggs may carry certain advantages. A quadrivalent inactivated influenza virus vaccine produced using the Madin Darby canine kidney cell line has been approved in the EU (Flucelvax® Tetra) and USA (Flucelvax Quadrivalent®; QIVc hereafter) for the prevention of influenza in adults and children. The clinical development of QIVc has built upon that of a cell-based trivalent influenza virus vaccine (TIVc) manufactured using the same processes; the additional influenza B strain contained in QIVc reduces the risk of the strain in the vaccine not matching that in circulation. Pivotal phase III clinical trials in adult and paediatric participants have demonstrated the immunogenicity of QIVc to be noninferior to that of TIVc formulations against shared strains and superior against the influenza B strain absent from each TIVc formulation. Protective efficacy data for TIVc is considered foundational for QIVc and, in a phase III clinical trial, TIVc was effective in protecting adults against antigenically matched influenza strains. Large real-world studies from the 2017/2018 US influenza season further support the prophylactic effectiveness of QIVc, with possible benefits over egg-based vaccines. QIVc was generally well tolerated in clinical trials. In adult and paediatric QIVc recipients, the most common solicited adverse reactions were injection site pain and headache. Reactogenicity was comparable to that of TIVc; no safety signals unique to QIVc emerged. Through circumventing concerns around egg adaptation, QIVc has the potential to be more effective than currently available egg-based quadrivalent vaccines.
Collapse
|
11
|
Affanni P, Colucci ME, Bracchi MT, Capobianco E, Zoni R, Caruso L, Castrucci MR, Puzelli S, Cantarelli A, Veronesi L. Virological Surveillance of Influenza in the eight epidemic seasons after the 2009 pandemic in Emilia-Romagna (Northern Italy). ACTA BIO-MEDICA : ATENEI PARMENSIS 2019; 90:35-44. [PMID: 31517888 PMCID: PMC7233653 DOI: 10.23750/abm.v90i9-s.8722] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 07/26/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND AIM OF THE WORK Influenza virological surveillance is essential for monitoring the evolution of influenza viruses (IVs) as well as for annual updating of the vaccine composition. The aim of this study is to analyse IVs circulation in Emilia-Romagna during the eight epidemic seasons after the 2009 pandemic and to evaluate their match with seasonal vaccine strains. METHODS A total of 7882 respiratory specimens from patients with influenza-like illness (ILI), were collected by regional sentinel practitioners and hospital physicians. Viral investigations were conducted by rRT-PCR assay. Genetic characterization was performed for a spatial-temporal representative number of influenza laboratory-confirmed specimens. RESULTS Influenza-positive samples per season ranged between 28.9% (2013-2014) and 66.8% (2012-2013). Co-circulation of IVs type A and type B was observed in all seasons, although with a different intensity. In all seasons, the highest number of positive samples was recorded in younger patients aged 5-14 years with relative frequencies ranging from 40% in the 2013-2014 season and 78% in the 2012-2013 season. Since the 2009 pandemic, A/H1N1pdm09 IVs circulating were closely related to the vaccine strain A/California/7/2009. Antigenic mismatch between vaccine strain and A/H3N2 IVs was observed in the 2011-2012 and 2014-2015 seasons. During 2015-2016, 2016-2017 and 2017-2018 seasons a complete or nearly complete mismatch between the predominant influenza B lineage of IVs type B circulating and vaccine B lineage occurred. CONCLUSIONS This analysis confirms the importance of the virological surveillance and highlights the need of a continuous monitoring of IVs circulation, to improve the most appropriate vaccination strategies. (www.actabiomedica.it).
Collapse
Affiliation(s)
- Paola Affanni
- Department of Medicine and Surgery, University of Parma, Italy.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
A mid-term estimate of 2018/2019 vaccine effectiveness to prevent laboratory confirmed A(H1N1)pdm09 and A(H3N2) influenza cases in Sicily (Italy). Vaccine 2019; 37:5812-5816. [DOI: 10.1016/j.vaccine.2019.08.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/29/2019] [Accepted: 08/09/2019] [Indexed: 11/19/2022]
|
13
|
Zhu D, Lok C, Chao S, Chen L, Li R, Zhao Z, Dong J, Qin K, Zhao X. Detection and characterization of type B influenza virus from influenza-like illness cases during the 2017-2018 winter influenza season in Beijing, China. Arch Virol 2019; 164:995-1003. [PMID: 30729995 DOI: 10.1007/s00705-019-04160-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 01/04/2019] [Indexed: 12/15/2022]
Abstract
In the winter of 2017-2018, there was significant influenza activity in China, resulting in unprecedented usage of influenza rapid antigen tests (IRAT) and neuraminidase inhibitors (NAIs). The aim of this study was to characterize the most prevalent influenza virus type in a clinical setting with respect to diagnosis and concomitant NAI treatment. From Dec 2017 to Jan 2018, 3257 patients with influenza-like illness (ILI) were screened using IRAT. We summarized and compared the results with the last influenza season. Subtyping of influenza B viruses and identification of NAI drug resistance mutations were carried out by sequencing the HA and NA genes and aligning these with genetic isotypes. The performance of IRAT and RT-PCR was compared. Screening results indicated that influenza B virus was the leading cause of this influenza epidemic, with children being more susceptible to infection than adults. Phylogenetic analysis revealed that the prevailing influenza B virus belonged to the Yamagata lineage and were genetically similar to strains isolated from North America in the same influenza season. Cross-continental spread of influenza/B/Yamagata occurred. NAI resistance mutations were not identified in the 18 samples analyzed. The current antiviral protocol was still effective for influenza B control. RT-PCR positivity was significantly higher than that of IRAT (P = 0.004). IRAT and RT-PCR had a consistency rate of 86.9%, with the consistency rates of the positive and negative cases being 54.3% and 97.3%, respectively. Clinicians should be alert to the possibility of obtaining false negative results when using IRAT, and RT-PCR is recommended to improve the accuracy of pathogen detection.
Collapse
Affiliation(s)
- Dong Zhu
- School of Clinical Medicine, Beijing Tsinghua Chang-gung Hospital, Tsinghua University, Beijing, People's Republic of China
| | - Chonghou Lok
- School of Clinical Medicine, Beijing Tsinghua Chang-gung Hospital, Tsinghua University, Beijing, People's Republic of China
| | - Shuang Chao
- School of Clinical Medicine, Beijing Tsinghua Chang-gung Hospital, Tsinghua University, Beijing, People's Republic of China
| | - Lingling Chen
- Key Laboratory for Medical Virology, National Institute for Viral Disease Control and Prevention, China CDC, National Health and Family Planning Commission, Beijing, People's Republic of China
| | - Runqing Li
- School of Clinical Medicine, Beijing Tsinghua Chang-gung Hospital, Tsinghua University, Beijing, People's Republic of China
| | - Zhipeng Zhao
- School of Clinical Medicine, Beijing Tsinghua Chang-gung Hospital, Tsinghua University, Beijing, People's Republic of China
| | - Jingxiao Dong
- School of Clinical Medicine, Beijing Tsinghua Chang-gung Hospital, Tsinghua University, Beijing, People's Republic of China
| | - Kun Qin
- Key Laboratory for Medical Virology, National Institute for Viral Disease Control and Prevention, China CDC, National Health and Family Planning Commission, Beijing, People's Republic of China.
| | - Xiuying Zhao
- School of Clinical Medicine, Beijing Tsinghua Chang-gung Hospital, Tsinghua University, Beijing, People's Republic of China.
| |
Collapse
|
14
|
Affiliation(s)
- Susanna Esposito
- a Pediatric Clinic, Department of Surgical and Biomedical Sciences , Università degli Studi di Perugia , Perugia , Italy
| |
Collapse
|
15
|
Drăgănescu A, Săndulescu O, Florea D, Vlaicu O, Streinu-Cercel A, Oţelea D, Aramă V, Luminos ML, Streinu-Cercel A, Niţescu M, Ivanciuc A, Bacruban R, Piţigoi D. The influenza season 2016/17 in Bucharest, Romania - surveillance data and clinical characteristics of patients with influenza-like illness admitted to a tertiary infectious diseases hospital. Braz J Infect Dis 2018; 22:377-386. [PMID: 30391275 PMCID: PMC9427989 DOI: 10.1016/j.bjid.2018.10.275] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/18/2018] [Accepted: 10/18/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Influenza continues to drive seasonal morbidity, particularly in settings with low vaccine coverage. OBJECTIVES To describe the influenza cases and viral circulation among hospitalized patients. METHODS A prospective study based on active surveillance of inpatients with influenza-like illness from a tertiary hospital in Bucharest, Romania, in the season 2016/17. RESULTS A total of 446 patients were tested, with a balanced gender distribution. Overall, 192 (43%) patients tested positive for influenza, with the highest positivity rate in the age groups 3-13 years and >65 years. Peak activity occurred between weeks 1 and 16/2017, with biphasic distribution: A viruses were replaced by B viruses from week 9/2017; B viruses predominated (66.1%). Among the 133 (69.3%) subtyped samples, all influenza A were subtype H3 (n=57) and all influenza B were B/Victoria (n=76). Patients who tested positive for influenza presented fewer comorbidities (p=0.012), except for the elderly, in whom influenza was more common in patients with comorbidities (p=0.050). Disease evolution was generally favorable under antiviral treatment. The length of hospital stay was slightly longer in patients with influenza-like illness who tested patients negative for influenza (p=0.031). CONCLUSIONS Distinctive co-circulation of A/H3 and B/Victoria in Bucharest, Romania in the 2016/17 influenza season was found. While the A/H3 subtype was predominant throughout Europe that season, B/Victoria appears to have circulated specifically in Romania and the Eastern European region, predominantly affecting preschoolers and school children.
Collapse
Affiliation(s)
- Anca Drăgănescu
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Oana Săndulescu
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
| | - Dragoş Florea
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Ovidiu Vlaicu
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Anca Streinu-Cercel
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Dan Oţelea
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Victoria Aramă
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Monica Luminiţa Luminos
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Adrian Streinu-Cercel
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Maria Niţescu
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Alina Ivanciuc
- Cantacuzino Military-Medical Research-Development National Institute, Bucharest, Romania; Bucharest University, Faculty of Biology, Bucharest, Romania
| | - Rodica Bacruban
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania
| | - Daniela Piţigoi
- National Institute for Infectious Diseases "Prof. Dr. Matei Balș", Bucharest, Romania; Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| |
Collapse
|
16
|
Ho YII, Wong AH, Lai RWM. Comparison of the Cepheid Xpert Xpress Flu/RSV Assay to in-house Flu/RSV triplex real-time RT-PCR for rapid molecular detection of Influenza A, Influenza B and Respiratory Syncytial Virus in respiratory specimens. J Med Microbiol 2018; 67:1576-1580. [PMID: 30207514 DOI: 10.1099/jmm.0.000841] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
This study compared the performance of the commercially available Xpert Xpress Flu/RSV assay to an in-house FluAB/RSV triplex real-time RT-PCR assay for the detection of influenza A/B viruses and respiratory syncitial virus (RSV) from both nasopharyngeal aspirate (NPA) and nasopharyngeal flocked swab (NPS). A total of 20 external quality assurance (EQA) samples and 172 clinical respiratory samples were tested prospectively using both the Xpert Xpress Flu/RSV assay and the in-house FluAB/RSV triplex assay. For the EQA samples, concordance rate was 100 % when tested with both assays. For clinical samples, there was 100 % agreement between the two assays for detection of influenza A and influenza B, 96.7 % agreement for detection of RSV and 99.7 % agreement for negative results. With a shortened turnaround time and good diagnostic performance, application of the Xpert Xpress Flu/RSV assay can facilitate patient triage for prompt implementation of infection control measures and management of high-risk patients during influenza epidemics.
Collapse
Affiliation(s)
- Yolanda I I Ho
- Department of Microbiology, Prince of Wales Hospital, Hong Kong, PR China
| | - Ann H Wong
- Department of Microbiology, Prince of Wales Hospital, Hong Kong, PR China
| | - Raymond W M Lai
- Department of Microbiology, Prince of Wales Hospital, Hong Kong, PR China
| |
Collapse
|
17
|
Boccalini S, Bechini A, Innocenti M, Sartor G, Manzi F, Bonanni P, Panatto D, Lai PL, Zangrillo F, Rizzitelli E, Iovine M, Amicizia D, Bini C, Marcellusi A, Mennini FS, Rinaldi A, Trippi F, Ferriero AM, Lisi GC. [The universal influenza vaccination in children with Vaxigrip Tetra ® in Italy: an evaluation of Health Technology Assessment]. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2018; 59:E1-E86. [PMID: 30465031 PMCID: PMC6219245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Sara Boccalini
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze
| | - Angela Bechini
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze
| | | | - Gino Sartor
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze
| | - Federico Manzi
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze
| | - Paolo Bonanni
- Dipartimento di Scienze della Salute, Università degli Studi di Firenze
| | - Donatella Panatto
- Dipartimento di Scienze della Salute, Università degli Studi di Genova
| | - Piero Luigi Lai
- Dipartimento di Scienze della Salute, Università degli Studi di Genova
| | | | | | | | - Daniela Amicizia
- Dipartimento di Scienze della Salute, Università degli Studi di Genova
| | - Chiara Bini
- Economic Evaluation and HTA (CEIS- EEHTA) - Facoltà di Economia, Università Tor Vergata
| | - Andrea Marcellusi
- Economic Evaluation and HTA (CEIS- EEHTA) - Facoltà di Economia, Università Tor Vergata
| | | | | | | | | | | |
Collapse
|
18
|
Epidemiology of Respiratory Pathogens among Elderly Nursing Home Residents with Acute Respiratory Infections in Corsica, France, 2013-2017. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1423718. [PMID: 29392127 PMCID: PMC5748090 DOI: 10.1155/2017/1423718] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/25/2017] [Accepted: 11/16/2017] [Indexed: 12/02/2022]
Abstract
Background The current study aims to describe the demographical and clinical characteristics of elderly nursing home (NH) residents with acute respiratory infections (ARIs) during four winter seasons (2013/2014–2016/2017), as well as the microbiological etiology of these infections. Methods Seventeen NHs with at least one ARI resident in Corsica, France, were included. An ARI resident was defined as a resident developing a sudden onset of any constitutional symptoms in addition to any respiratory signs. Nasopharyngeal swabs from ARI residents were screened for the presence of 21 respiratory agents, including seasonal influenza viruses. Results Of the 107 ARI residents enrolled from NHs, 61 (57%) were positive for at least one of the 21 respiratory pathogens. Forty-one (38.3%) of the 107 ARI residents had influenza: 38 (92%) were positive for influenza A (100% A(H3N2)) and three (8%) for influenza B/Victoria. Axillary fever (≥38°C) was significantly more common among patients infected with influenza A(H3N2). Conclusion The circulation of seasonal respiratory viruses other than influenza A(H3N2) seems to be sporadic among elderly NH residents. Investigating the circulation of respiratory viruses in nonwinter seasons seems to be important in order to understand better the dynamic of their year-round circulation in NHs.
Collapse
|