{"id":22218,"date":"2025-07-30T01:51:14","date_gmt":"2025-07-30T05:51:14","guid":{"rendered":"https:\/\/www.ices.on.ca\/?post_type=journal_article&#038;p=22218"},"modified":"2025-07-31T02:10:27","modified_gmt":"2025-07-31T06:10:27","slug":"incidence-of-respiratory-syncytial-virus-associated-hospitalization-among-adults-in-ontario-canada-2017-2019","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/incidence-of-respiratory-syncytial-virus-associated-hospitalization-among-adults-in-ontario-canada-2017-2019\/","title":{"rendered":"Incidence of respiratory syncytial virus-associated hospitalization among adults in Ontario, Canada, 2017-2019"},"content":{"rendered":"<p><strong>Background<\/strong> \u2014 Respiratory syncytial virus (RSV) causes substantial morbidity and mortality among adults. Given recent RSV vaccine authorizations, data on groups at highest risk are needed to support vaccine program decision making.<\/p>\n<p><strong>Methods<\/strong> \u2014 We identified adults aged \u2265 18 years hospitalized with laboratory-confirmed RSV and hospitalizations with RSV-related diagnostic codes in Ontario, Canada (2017\u20132019). We calculated incidence of hospitalization with 95% confidence intervals (CIs) using Poisson regression stratified by demographic and clinical risk factors, and substratified by age. We reported secondary outcomes including the proportion of individuals with fatal outcomes.<\/p>\n<p><strong>Results<\/strong> \u2014 Over 2 respiratory virus seasons, we identified 3928 RSV-associated hospitalizations. Incidence increased steadily with age from 2.0 (95% CI, 1.8\u20132.3) per 100 000 for those aged 18\u201349 years to 43.7 (95% CI, 41.0\u201346.6) per 100 000 for those aged 70\u201379 years, with a sharp increase to 134.7 (95% CI, 128.6\u2013141.1) per 100 000 for those aged \u2265 80 years. Incidence was higher for those with comorbidities, including chronic kidney disease (receiving dialysis) (494.7; 95% CI, 410.7\u2013595.8) and transplant recipients (370.9; 95% CI, 318.0\u2013432.6), as well as for those living in lower (22.4; 95% CI, 21.1\u201323.7) versus higher-income neighborhoods (11.8; 95% CI, 10.8\u201312.8). Among those hospitalized, 10.3% (n = 403) died within 30 days of admission, and 93.1% of deaths occurred in those aged \u2265 60 years. Of survivors, 44.6% of community-dwelling adults aged \u2265 60 years had functional decline requiring formal supports at discharge.<\/p>\n<p><strong>Discussion<\/strong> \u2014 We found a substantial burden of RSV among older adults, particularly among those with preexisting medical conditions and those of lower socioeconomic status. These results will inform equitable vaccine recommendations for adults.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Background \u2014 Respiratory syncytial virus (RSV) causes substantial morbidity and mortality among adults. Given recent RSV vaccine authorizations, data on groups at highest risk are needed to support vaccine program decision making. Methods \u2014 We identified adults aged \u2265 18 years hospitalized with laboratory-confirmed RSV and hospitalizations with RSV-related diagnostic codes in Ontario, Canada (2017\u20132019). [&hellip;]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[20,39,35],"migration-helper-qa-sample-set":[],"class_list":["post-22218","journal_article","type-journal_article","status-publish","hentry","topic-health-and-health-care-inequality","topic-infectious-diseases","topic-public-health"],"acf":{"citation":"Buchan SA, Alessandrini J, Drover SSM, Andrew MK, Bronskill SE, Brown KA, Daneman N, Deeks SL, Gubbay JB, Johnstone J, Karnauchow TM, Lee S, McGeer AJ, McNally JD, McNeil SA, Mubareka S, Murti M, Smieja M, Wilson SE, Kwong JC. <em>J Infect Dis<\/em>. 2025; jiaf343. Epub 2025 Jul 30.","source_url":"https:\/\/doi.org\/10.1093\/infdis\/jiaf343","ices_scientist":[1161,1159,1181,1215,1126,1149],"site":[6733],"research_program":[6745],"news_release":"","journal_article":"","atlas":"","research_report":"","infographic":"","video":"","downloads":null,"links":null,"sitecore_item_id":"","sitecore_item_name":"","sitecore_field_values":"","previous_url":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ICES | Incidence of respiratory syncytial virus-associated hospitalization among adults in Ontario, Canada, 2017-2019<\/title>\n<meta name=\"description\" content=\"Background \u2014 Respiratory syncytial virus (RSV) causes substantial morbidity and mortality among adults. 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