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Abstract

To monitor relative vaccine effectiveness (rVE) against COVID-19-related hospitalisation of the first, second and third COVID-19 booster (vs complete primary vaccination), we performed monthly Cox regression models using retrospective cohorts constructed from electronic health registries in eight European countries, October 2021–July 2023. Within 12 weeks of administration, each booster showed high rVE (≥ 70% for second and third boosters). However, as of July 2023, most of the relative benefit has waned, particularly in persons ≥ 80-years-old, while some protection remained in 65–79-year-olds.

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/content/10.2807/1560-7917.ES.2024.29.1.2300670
2024-01-04
2024-12-26
/content/10.2807/1560-7917.ES.2024.29.1.2300670
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Relative vaccine effectiveness against COVID-19 hospitalisation in persons aged ≥ 65 years: results from a VEBIS network, Europe, October 2021 to July 2023
<p class="citation"> <span>Citation style for this article:</span> <span class="meta-value authors"> <a href="/search?value1=Mario+Font%C3%A1n-Vela&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Fontán-Vela Mario</a>, <a href="/search?value1=Esther+Kissling&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Kissling Esther</a>, <a href="/search?value1=Nathalie+Nicolay&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Nicolay Nathalie</a>, <a href="/search?value1=Toon+Braeye&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Braeye Toon</a>, <a href="/search?value1=Izaak+Van+Evercooren&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Van Evercooren Izaak</a>, <a href="/search?value1=Christian++Holm+Hansen&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Holm Hansen Christian </a>, <a href="/search?value1=Hanne-Dorthe+Emborg&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Emborg Hanne-Dorthe</a>, <a href="/search?value1=Massimo+Fabiani&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Fabiani Massimo</a>, <a href="/search?value1=Alberto+Mateo-Urdiales&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Mateo-Urdiales Alberto</a>, <a href="/search?value1=Ala%26apos%3Ba+AlKerwi&option1=author&noRedirect=true" class="nonDisambigAuthorLink">AlKerwi Ala&apos;a</a>, <a href="/search?value1=Susanne+Schmitz&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Schmitz Susanne</a>, <a href="/search?value1=Jes%C3%BAs+Castilla&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Castilla Jesús</a>, <a href="/search?value1=Iv%C3%A1n+Mart%C3%ADnez-Baz&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Martínez-Baz Iván</a>, <a href="/search?value1=Brechje+de+Gier&option1=author&noRedirect=true" class="nonDisambigAuthorLink">de Gier Brechje</a>, <a href="/search?value1=Susan+Hahn%C3%A9&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Hahné Susan</a>, <a href="/search?value1=Hinta+Meijerink&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Meijerink Hinta</a>, <a href="/search?value1=Jostein+Starrfelt&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Starrfelt Jostein</a>, <a href="/search?value1=Baltazar+Nunes&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Nunes Baltazar</a>, <a href="/search?value1=Constantino+Caetano&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Caetano Constantino</a>, <a href="/search?value1=Tarik+Derrough&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Derrough Tarik</a>, <a href="/search?value1=Anthony+Nardone&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Nardone Anthony</a>, <a href="/search?value1=Susana+Monge&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Monge Susana</a>, <a href="/search?value1=VEBIS-Lot4+working+group&option1=author&noRedirect=true" class="nonDisambigAuthorLink">VEBIS-Lot4 working group</a></span>. Relative vaccine effectiveness against COVID-19 hospitalisation in persons aged ≥ 65 years: results from a VEBIS network, Europe, October 2021 to July 2023. <a href="/content/ecdc">Euro Surveill.</a> 2024;29(1):pii=2300670. <a href="https://doi.org/10.2807/1560-7917.ES.2024.29.1.2300670" title="doi link" target="_blank">https://doi.org/10.2807/1560-7917.ES.2024.29.1.2300670</a> <span class="ES_Article_citation"> <span class="generated">Received</span>: 24 Nov 2023;&nbsp;&nbsp; <span class="generated">Accepted</span>: 11 Dec 2023 </span> </p>
/content/10.2807/1560-7917.ES.2024.29.1.2300670
/content/10.2807/1560-7917.ES.2024.29.1.2300670
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