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Abstract

We estimated vaccine effectiveness (VE) against severe COVID-19 during October 2021, using Slovenian surveillance data. For people fully vaccinated with any vaccine in age groups 18–49, 50–64, ≥ 65 years, VE was 86% (95% CI: 79–90), 89% (85–91), and 77% (74–81). Among ≥ 65 year-olds fully vaccinated with mRNA vaccines, VE decreased from 93% (95% CI: 88–96) in those vaccinated ≤ 3 months ago to 43% (95% CI: 30–54) in those vaccinated ≥ 6 months ago, suggesting the need for early boosters.

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/content/10.2807/1560-7917.ES.2022.27.1.2101110
2022-01-06
2024-12-27
/content/10.2807/1560-7917.ES.2022.27.1.2101110
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Vaccine effectiveness against severe acute respiratory infections (SARI) COVID-19 hospitalisations estimated from real-world surveillance data, Slovenia, October 2021
<p class="citation"> <span>Citation style for this article:</span> <span class="meta-value authors"> <a href="/search?value1=Marta+Grgi%C4%8D+Vitek&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Grgič Vitek Marta</a>, <a href="/search?value1=Irena+Klavs&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Klavs Irena</a>, <a href="/search?value1=Veronika+U%C4%8Dakar&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Učakar Veronika</a>, <a href="/search?value1=Mojca+Serdt&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Serdt Mojca</a>, <a href="/search?value1=Maja+Mrzel&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Mrzel Maja</a>, <a href="/search?value1=Marjana+Vrh&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Vrh Marjana</a>, <a href="/search?value1=Mario+Fafangel&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Fafangel Mario</a></span>. Vaccine effectiveness against severe acute respiratory infections (SARI) COVID-19 hospitalisations estimated from real-world surveillance data, Slovenia, October 2021. <a href="/content/ecdc">Euro Surveill.</a> 2022;27(1):pii=2101110. <a href="https://doi.org/10.2807/1560-7917.ES.2022.27.1.2101110" title="doi link" target="_blank">https://doi.org/10.2807/1560-7917.ES.2022.27.1.2101110</a> <span class="ES_Article_citation"> <span class="generated">Received</span>: 03 Dec 2021;&nbsp;&nbsp; <span class="generated">Accepted</span>: 17 Dec 2021 </span> </p>
/content/10.2807/1560-7917.ES.2022.27.1.2101110
/content/10.2807/1560-7917.ES.2022.27.1.2101110
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