{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,11]],"date-time":"2026-10-11T17:40:52Z","timestamp":1791740452194,"version":"4.3.4"},"reference-count":33,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T00:00:00Z","timestamp":1785110400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,7,27]],"date-time":"2026-07-27T00:00:00Z","timestamp":1785110400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Medical Virology"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Non\u2010pharmaceutical interventions implemented during the COVID\u201019 pandemic profoundly disrupted the established seasonality of respiratory syncytial virus (RSV) worldwide. However, molecular epidemiological data on RSV resurgence and genetic diversity in tropical regions during the post\u2010pandemic period remain scarce. This study investigated the molecular epidemiology, seasonal trends, genetic diversity, and evolutionary dynamics of RSV circulating among Thai children with respiratory illness between 2023 and 2025. Of 5198 respiratory specimens, 697 (13.4%) tested positive for RSV, with a pronounced post\u2010pandemic resurgence observed in 2023 (18.3%). RSV seasonality returned to its typical pre\u2010pandemic pattern, peaking during the rainy season (July\u2013November). A shift in age distribution was observed, with the highest burden occurring among 3\u2010year\u2010olds (27.0%). Alternating subgroup dominance was evident, with RSV\u2010B predominating in 2023 (44.4%) and 2025 (43.9%), while RSV\u2010A predominated in 2024 (46.3%). All RSV\u2010A strains belonged to the ON1 genotype (A.D lineage), exhibiting sequential annual turnover of dominant sublineages from A.D.5.2 to A.D.1.4 and A.D.3. Conversely, RSV\u2010B strains belonged to the BA9 genotype (B.D lineage) with sustained dominance of the B.D.E.1 sublineage (76.7%). Distinct lineage\u2010specific amino acid substitutions suggested ongoing viral diversification and immune selection pressures. These findings underscore the importance of continued molecular surveillance to inform RSV prevention strategies.<\/jats:p>","DOI":"10.1002\/jmv.71089","type":"journal-article","created":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T05:14:10Z","timestamp":1785215650000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Post\u2010Pandemic Resurgence of Respiratory Syncytial Virus in Thailand: Molecular Epidemiology and Sublineage Turnover Among Children, 2023\u20132025"],"prefix":"10.1002","volume":"98","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-9184-147X","authenticated-orcid":false,"given":"Siripat","family":"Pasittungkul","sequence":"first","affiliation":[{"name":"Center of Excellence in Clinical Virology Faculty of Medicine, Chulalongkorn University Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-7960-0673","authenticated-orcid":false,"given":"Preeyaporn","family":"Vichaiwattana","sequence":"additional","affiliation":[{"name":"Center of Excellence in Clinical Virology Faculty of Medicine, Chulalongkorn University Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2337-6807","authenticated-orcid":false,"given":"Yong","family":"Poovorawan","sequence":"additional","affiliation":[{"name":"Center of Excellence in Clinical Virology Faculty of Medicine, Chulalongkorn University Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7953-275X","authenticated-orcid":false,"given":"Nasamon","family":"Wanlapakorn","sequence":"additional","affiliation":[{"name":"Center of Excellence in Clinical Virology Faculty of Medicine, Chulalongkorn University Bangkok Thailand"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,7,27]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(22)00478-0"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40121-016-0142-x"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.15585\/mmwr.mm7338a2"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa2110275"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa2502984"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S2214-109X(17)30344-3"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1128\/CMR.13.1.1"},{"issue":"10","key":"e_1_2_10_9_1","doi-asserted-by":"crossref","first-page":"2411","DOI":"10.1099\/0022-1317-78-10-2411","article-title":"Antigenic Structure, Evolution and Immunobiology of Human Respiratory Syncytial Virus Attachment (G) Protein","volume":"78","author":"Cane P. 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