Epidemiology and genetic diversity of human respiratory syncytial virus in Belgium between 2011 and 2019.
Humans
Respiratory Syncytial Virus, Human
/ genetics
Belgium
/ epidemiology
Respiratory Syncytial Virus Infections
/ epidemiology
Genetic Variation
Child, Preschool
Infant
Child
Aged
Adult
Middle Aged
Genotype
Phylogeny
Adolescent
Young Adult
Seasons
Male
Female
Infant, Newborn
Aged, 80 and over
Prevalence
Belgium
Epidemiology
Human respiratory syncytial virus
Respiratory health
Seasonality
Journal
Virology journal
ISSN: 1743-422X
Titre abrégé: Virol J
Pays: England
ID NLM: 101231645
Informations de publication
Date de publication:
28 Oct 2024
28 Oct 2024
Historique:
received:
07
07
2024
accepted:
15
10
2024
medline:
29
10
2024
pubmed:
29
10
2024
entrez:
29
10
2024
Statut:
epublish
Résumé
Human respiratory syncytial virus (HRSV) is worldwide one of the leading causes of acute respiratory tract infections in young children and the elderly population. Two distinct subtypes of HRSV (A and B) and a multitude of genotypes have been described. The laboratory of Clinical and Epidemiological Virology (KU Leuven/University Hospitals Leuven) has a long-standing history of HRSV surveillance in Belgium. In this study, the seasonal circulation of HRSV in Belgium was monitored during 8 consecutive seasons prior to the SARS-CoV-2 pandemic (2011-2012 until 2018-2019). By use of a multiplex quantitative real time PCR panel, 27,386 respiratory samples were tested for HRSV. Further subtyping and sequencing of the HRSV positive samples was performed by PCR and Sanger sequencing. The prevalence and positivity rate were estimated in 4 distinct age groups and the circulating strains of each subtype were situated in a global context and in reference to the described genotypes in literature. HRSV circulated in Belgium in a yearly re-occurring pattern during the winter months and both HRSV subtypes co-circulated simultaneously. All HRSV-B strains contained the 60 nt duplication in the HVR2 region of the G gene. Strains of subtype HRSV-A with a 72 nt duplication in the HVR2 region were first observed during the 2011-2012 season and replaced all other circulating strains from 2014 to 2015 onwards.
Sections du résumé
BACKGROUND
BACKGROUND
Human respiratory syncytial virus (HRSV) is worldwide one of the leading causes of acute respiratory tract infections in young children and the elderly population. Two distinct subtypes of HRSV (A and B) and a multitude of genotypes have been described. The laboratory of Clinical and Epidemiological Virology (KU Leuven/University Hospitals Leuven) has a long-standing history of HRSV surveillance in Belgium.
METHODS
METHODS
In this study, the seasonal circulation of HRSV in Belgium was monitored during 8 consecutive seasons prior to the SARS-CoV-2 pandemic (2011-2012 until 2018-2019). By use of a multiplex quantitative real time PCR panel, 27,386 respiratory samples were tested for HRSV. Further subtyping and sequencing of the HRSV positive samples was performed by PCR and Sanger sequencing. The prevalence and positivity rate were estimated in 4 distinct age groups and the circulating strains of each subtype were situated in a global context and in reference to the described genotypes in literature.
RESULTS
RESULTS
HRSV circulated in Belgium in a yearly re-occurring pattern during the winter months and both HRSV subtypes co-circulated simultaneously. All HRSV-B strains contained the 60 nt duplication in the HVR2 region of the G gene. Strains of subtype HRSV-A with a 72 nt duplication in the HVR2 region were first observed during the 2011-2012 season and replaced all other circulating strains from 2014 to 2015 onwards.
Identifiants
pubmed: 39468663
doi: 10.1186/s12985-024-02542-4
pii: 10.1186/s12985-024-02542-4
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
270Informations de copyright
© 2024. The Author(s).
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