{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,19]],"date-time":"2026-10-19T12:04:48Z","timestamp":1792411488526,"version":"4.4.0"},"reference-count":47,"publisher":"American Medical Association (AMA)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"abstract":"Importance<\/jats:title>An estimated 1% to 3% of children with SARS-CoV-2 infection will develop post\u2013COVID-19 condition (PCC).<\/jats:p><\/jats:sec>Objective<\/jats:title>To evaluate the odds of PCC among children with COVID-19 vaccination prior to SARS-CoV-2 infection compared with odds among unvaccinated children.<\/jats:p><\/jats:sec>Design, Setting, and Participants<\/jats:title>In this case-control study, children were enrolled in a multisite longitudinal pediatric cohort from July 27, 2021, to September 1, 2022, and followed up through May 2023. Analysis used a case (PCC reported)\u2013control (no PCC reported) design and included children aged 5 to 17 years whose first real time\u2013polymerase chain reaction (RT-PCR)\u2013confirmed SARS-CoV-2 infection occurred during the study period, who were COVID-19 vaccine age-eligible at the time of infection, and who completed a PCC survey at least 60 days after infection. From December 1, 2022, to May 31, 2023, children had weekly SARS-CoV-2 testing and were surveyed regarding PCC (\u22651 new or ongoing symptom lasting \u22651 month after infection).<\/jats:p><\/jats:sec>Exposures<\/jats:title>COVID-19 mRNA vaccination status at time of infection was the exposure of interest; participants were categorized as vaccinated (\u22652-dose series completed \u226514 days before infection) or unvaccinated. Vaccination status was verified through vaccination cards or vaccine registry and\/or medical records when available.<\/jats:p><\/jats:sec>Main Outcome and Measures<\/jats:title>Main outcomes were estimates of the odds of PCC symptoms. Multivariate logistic regression was performed to estimate the odds of PCC among vaccinated children compared with odds of PCC among unvaccinated children.<\/jats:p><\/jats:sec>Results<\/jats:title>A total of 622 participants were included, with 28 (5%) case participants and 594 (95%) control participants. Median (IQR) age was 10.0 (7.0-11.9) years for case participants and 10.3 (7.8-12.7) years for control participants (P<\/jats:italic>\u2009=\u2009.37). Approximately half of both groups reported female sex (13 case participants [46%] and 287 control participants [48%]). Overall, 57% of case participants (16 children) and 77% of control participants (458 children) were vaccinated (P<\/jats:italic>\u2009=\u2009.05). After adjusting for demographic characteristics, number of acute COVID-19 symptoms, and baseline health, COVID-19 vaccination was associated with decreased odds of 1 or more PCC symptom (adjusted odds ratio [aOR], 0.43; 95% CI, 0.19-0.98) and 2 or more PCC symptoms (aOR, 0.27; 95% CI, 0.10-0.69).<\/jats:p><\/jats:sec>Conclusions and Relevance<\/jats:title>In this study, mRNA COVID-19 vaccination was associated with reduced odds of PCC in children. The aORs correspond to an estimated 57% and 73% reduced likelihood of 1 or more and 2 or more PCC symptoms, respectively, among vaccinated vs unvaccinated children. These findings suggest benefits of COVID-19 vaccination beyond those associated with protection against acute COVID-19 and may encourage increased pediatric uptake.<\/jats:p><\/jats:sec>","DOI":"10.1001\/jamanetworkopen.2024.59672","type":"journal-article","created":{"date-parts":[[2025,2,24]],"date-time":"2025-02-24T16:34:42Z","timestamp":1740414882000},"page":"e2459672","source":"Crossref","is-referenced-by-count":24,"title":["COVID-19 Vaccination and Odds of Post\u2013COVID-19 Condition Symptoms in Children Aged 5 to 17 Years"],"prefix":"10.1001","volume":"8","author":[{"given":"Anna R.","family":"Yousaf","sequence":"first","affiliation":[{"name":"Coronavirus and Other Respiratory Viruses Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Georgia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Josephine","family":"Mak","sequence":"additional","affiliation":[{"name":"Coronavirus and Other Respiratory 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