ArticleViruses2023
Molecular Epidemiology of Respiratory Syncytial Virus during 2019-2022 and Surviving Genotypes after the COVID-19 Pandemic in Japan.
Article in Viruses, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Epidemiology of human RSV in Taiwan, 2018-2024.PloS one · 2026Article
- Article
- Article
- Epidemiology of moderate-to-severe respiratory syncytial virus infections in children in subtropical Okinawa, Japan: a 4-year retrospective study.Tropical medicine and health · 2025Article
- Genotypic Characterization of Human Respiratory Syncytial Viruses Detected in Mexico Between 2021 and 2024.Viruses · 2025Article
- Molecular epidemiological surveillance of respiratory syncytial virus infection in Myanmar from 2019 to 2023.Scientific reports · 2025Article
- Outbreak of Post-Infectious Bronchiolitis Obliterans (PIBO) After Adenovirus Infection: A Case Series and Review of the Literature.Pediatric pulmonology · 2025Review
- Epidemiology of human respiratory tract infection in Chongqing, China after COVID-19-based on surveillance data encompassing 17 respiratory pathogens.Frontiers in cellular and infection microbiology · 2025Article
- Clinical Features of RS Virus Infection before, during, and after COVID-19 Pandemic.Children (Basel, Switzerland) · 2024Article
- Article
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21 authors.
Funding
Abstract
To evaluate the changes in respiratory syncytial virus (RSV) collected between 2019 and 2022, we analyzed RSV-A and RSV-B strains from various prefectures in Japan before and after the COVID-19 pandemic. RT-PCR-positive samples collected from children with rapid test positivity at outpatient clinics in 11 prefectures in Japan were sequenced for the ectodomain of the G gene to determine the genotype. Time-aware phylogeographic analyses were performed using the second hypervariable region (HVR) of the G gene from 2012 to 2022. Of 967 samples, 739 (76.4%) were found to be RSV-positive using RT-PCR. RSV peaked in September 2019 but was not detected in 2020, except in Okinawa. Nationwide epidemics occurred with peaks in July 2021 and 2022. The genotype remained the same, ON1 for RSV-A and BA9 for RSV-B during 2019-2022. Phylogeographic analysis of HVR revealed that at least seven clusters of RSV-A had circulated previously but decreased to two clusters after the pandemic, whereas RSV-B had a single monophyletic cluster over the 10 years. Both RSV-A and RSV-B were transferred from Okinawa into other prefectures after the pandemic. The RSV epidemic was suppressed due to pandemic restrictions; however, pre-pandemic genotypes spread nationwide after the pandemic.
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