{"title":"Impact of the 2023/24 autumn-winter COVID-19 seasonal booster campaign in preventing severe COVID-19 cases in Italy (October 2023–March 2024)","authors":"","doi":"10.1016/j.vaccine.2024.126375","DOIUrl":null,"url":null,"abstract":"<div><p>We assessed the impact of the 2023/2024 COVID-19 vaccination campaign in Italy by estimating the number of averted COVID-19 severe cases (i.e. COVID-19 associated hospitalisations or deaths) between October 2023 and March 2024, in those aged ≥60 years. We estimated that 565 (95 % CI: 497–625) cases, corresponding to 2.1 % (95 % CI: 1.8–2.3) of the expected cases without a vaccination campaign, were averted. We simulated three vaccination coverage scenarios: 50 %, 75 %, 90 % (versus the observed 10.7 %), finding that 9.7 % (95 % CI: 8.5–10.7); 14.5 % (95 % CI: 12.8–16.1); and 17.4 % (95 % CI: 15.3–19.3) of the expected cases would have been averted, respectively.</p></div>","PeriodicalId":23491,"journal":{"name":"Vaccine","volume":null,"pages":null},"PeriodicalIF":4.5000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0264410X24010570/pdfft?md5=d8bfb89ed048ed9c195a524ef76cd937&pid=1-s2.0-S0264410X24010570-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vaccine","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0264410X24010570","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
We assessed the impact of the 2023/2024 COVID-19 vaccination campaign in Italy by estimating the number of averted COVID-19 severe cases (i.e. COVID-19 associated hospitalisations or deaths) between October 2023 and March 2024, in those aged ≥60 years. We estimated that 565 (95 % CI: 497–625) cases, corresponding to 2.1 % (95 % CI: 1.8–2.3) of the expected cases without a vaccination campaign, were averted. We simulated three vaccination coverage scenarios: 50 %, 75 %, 90 % (versus the observed 10.7 %), finding that 9.7 % (95 % CI: 8.5–10.7); 14.5 % (95 % CI: 12.8–16.1); and 17.4 % (95 % CI: 15.3–19.3) of the expected cases would have been averted, respectively.
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