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RSV reemergence in Argentina since the SARS-CoV-2 pandemic.
Dolores, Acuña; Stephanie, Goya; Mercedes S, Nabaes Jodar; Érica, Grandis; Mistchenko, Alicia S; Mariana, Viegas.
Afiliação
  • Dolores A; Virology Laboratory, Ricardo Gutierrez Children's Hospital, Buenos Aires City, Argentina; National Scientific and Technical Research Council, Argentina.
  • Stephanie G; Virology Laboratory, Ricardo Gutierrez Children's Hospital, Buenos Aires City, Argentina.
  • Mercedes S NJ; Virology Laboratory, Ricardo Gutierrez Children's Hospital, Buenos Aires City, Argentina.
  • Érica G; Virology Laboratory, Ricardo Gutierrez Children's Hospital, Buenos Aires City, Argentina.
  • Mistchenko AS; Virology Laboratory, Ricardo Gutierrez Children's Hospital, Buenos Aires City, Argentina; Scientific Research Commission, Buenos Aires province, Argentina.
  • Mariana V; Virology Laboratory, Ricardo Gutierrez Children's Hospital, Buenos Aires City, Argentina; National Scientific and Technical Research Council, Argentina. Electronic address: viegasmariana@conicet.gov.ar.
J Clin Virol ; 149: 105126, 2022 04.
Article em En | MEDLINE | ID: mdl-35299101
INTRODUCTION: The community mitigation measures taken because of the COVID-19 pandemic had side effects on the circulation of the most frequent respiratory viruses during 2020. In the case of respiratory syncytial virus (RSV), an important paediatric pathogen, a decrease in the number of cases and delayed outbreaks was previously described. AIM AND METHODS: The genetic characteristics of the RSV circulating strains in paediatric patients in Buenos Aires, Argentina before and during the COVID-19 pandemic were studied. RSV (+) samples taken from hospitalised patients with respiratory tract infections (2018- 2021) were analysed through G gene sequencing and evolutionary analyses. RESULTS: No RSV hospitalised paediatric patients were registered in Buenos Aires during 2020; however, RSV reemerged in 2021 with a lower number of cases and a delayed outbreak, peaking in July-August. A total of 147 G gene sequences were analysed. RSV-B (N = 85) predominated during 2018 and 2021 whereas in 2019 RSV-A were more prevalent (N = 62). All RSV-A sequences were ON1-like strains, and all RSV-B were BA-like. Phylogenetic analyses showed that the same genetic lineages circulated before and after 2020, but RSVs from 2021 corresponded to new viral introductions rather than cryptic circulation of the previous genetic clusters in Buenos Aires during 2020. CONCLUSIONS: Following the reopening of borders, the reemergence of RSV in Argentina brought new viral introductions from other countries. Therefore, it is important to continue a deep global molecular surveillance to characterise RSV strains in post-pandemic circulation with an impact in future vaccine implementation.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Vírus Sincicial Respiratório Humano / Infecções por Vírus Respiratório Sincicial / COVID-19 Limite: Child / Humans / Infant País/Região como assunto: America do sul / Argentina Idioma: En Revista: J Clin Virol Assunto da revista: VIROLOGIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Argentina País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Vírus Sincicial Respiratório Humano / Infecções por Vírus Respiratório Sincicial / COVID-19 Limite: Child / Humans / Infant País/Região como assunto: America do sul / Argentina Idioma: En Revista: J Clin Virol Assunto da revista: VIROLOGIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Argentina País de publicação: Holanda