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Abstract

Compared with individuals unvaccinated in the current and three previous influenza seasons, in 2021/22, influenza vaccine effectiveness at primary care level was 37% (95% CI: 16 to 52) for current season vaccination, regardless of previous doses, and 35% (95% CI: −3 to 45) for only previous seasons vaccination. Against influenza A(H3N2), estimates were 39% (95% CI: 16 to 55) and 24% (95% CI: −8 to 47) suggesting moderate effectiveness of current season vaccination and possible remaining effect of prior vaccinations.

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/content/10.2807/1560-7917.ES.2022.27.26.2200488
2022-06-30
2024-12-31
/content/10.2807/1560-7917.ES.2022.27.26.2200488
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Effectiveness of influenza vaccination in preventing influenza in primary care, Navarre, Spain, 2021/22
<p class="citation"> <span>Citation style for this article:</span> <span class="meta-value authors"> <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=Itziar+Casado&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Casado Itziar</a>, <a href="/search?value1=Ana+Miqueleiz&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Miqueleiz Ana</a>, <a href="/search?value1=Ana+Navascu%C3%A9s&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Navascués Ana</a>, <a href="/search?value1=Francisco+Pozo&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Pozo Francisco</a>, <a href="/search?value1=Camino+Trobajo-Sanmart%C3%ADn&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Trobajo-Sanmartín Camino</a>, <a href="/search?value1=Esther+Alb%C3%A9niz&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Albéniz Esther</a>, <a href="/search?value1=Fernando+El%C3%ADa&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Elía Fernando</a>, <a href="/search?value1=Cristina+Burgui&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Burgui Cristina</a>, <a href="/search?value1=Miguel+Fern%C3%A1ndez-Huerta&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Fernández-Huerta Miguel</a>, <a href="/search?value1=Carmen+Ezpeleta&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Ezpeleta Carmen</a>, <a href="/search?value1=Jes%C3%BAs+Castilla&option1=author&noRedirect=true" class="nonDisambigAuthorLink">Castilla Jesús</a></span>. Effectiveness of influenza vaccination in preventing influenza in primary care, Navarre, Spain, 2021/22. <a href="/content/ecdc">Euro Surveill.</a> 2022;27(26):pii=2200488. <a href="https://doi.org/10.2807/1560-7917.ES.2022.27.26.2200488" title="doi link" target="_blank">https://doi.org/10.2807/1560-7917.ES.2022.27.26.2200488</a> <span class="ES_Article_citation"> <span class="generated">Received</span>: 17 Jun 2022;&nbsp;&nbsp; <span class="generated">Accepted</span>: 30 Jun 2022 </span> </p>
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