Euro Surveill. Early estimates of the effectiveness of the 2011/12 influenza vaccine in the population targeted for vaccination in Spain, 25 December

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[Source: Eurosurveillance, full text: (LINK). Abstract, edited.]

Eurosurveillance, Volume 17, Issue 12, 22 March 2012

Rapid communications


Early estimates of the effectiveness of the 2011/12 influenza vaccine in the population targeted for vaccination in Spain, 25 December 2011 to 19 February 2012

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S Jim?nez-Jorge ()<SUP>1</SUP><SUP>,2</SUP>, S de Mateo<SUP>1</SUP><SUP>,2</SUP>, F Pozo<SUP>3</SUP>, I Casas<SUP>3</SUP>, M Garc?a Cenoz<SUP>2</SUP><SUP>,4</SUP>, J Castilla<SUP>2</SUP><SUP>,4</SUP>, V Gallardo<SUP>5</SUP>, E P?rez<SUP>5</SUP>, T Vega<SUP>6</SUP>, C Rodriguez<SUP>6</SUP>, C Quinones<SUP>7</SUP>, E Mart?nez<SUP>7</SUP>, J Gim?nez<SUP>8</SUP>, J M Vanrell<SUP>8</SUP>, D Castrillejo<SUP>9</SUP>, M C Serrano<SUP>10</SUP>, J M Ramos<SUP>10</SUP>, A Larrauri<SUP>1</SUP><SUP>,2</SUP>

1. National Centre of Epidemiology, Institute of Health Carlos III, Madrid, Spain
2. Ciber Epidemiolog?a y Salud P?blica (CIBERESP), Ministry of Science and Innovation, Institute of Health Carlos III, Madrid, Spain
3. National Centre for Microbiology, World Health Organization National Influenza Centre, Institute of Health Carlos III, Madrid, Spain
4. Instituto de Salud P?blica de Navarra, Navarra, Spain
5. Servicio de Epidemiolog?a y Salud Laboral. Secretar?a General de Salud P?blica y Participaci?n. Consejer?a de Salud de Andaluc?a, Seville, Spain
6. Direcci?n General de Salud P?blica, Consejer?a de Sanidad de Castilla y Le?n, Valladolid, Spain
7. Servicio de Epidemiolog?a, Subdirecci?n de Salud P?blica de La Rioja, La Rioja, Spain
8. Servicio de Epidemiolog?a, Direcci?n General de Salut P?blica, Mallorca, Baleares, Spain
9. Servicio de Epidemiolog?a, Direcci?n General de Sanidad y Consumo, Consejer?a de Bienestar Social y Sanidad, Ciudad Aut?noma de Melilla, Spain
10. Direcci?n General de Salud P?blica, Servicio Extreme?o de Salud, Badajoz, Junta de Extremadura, Spain

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Citation style for this article: Jim?nez-Jorge S, de Mateo S, Pozo F, Casas I, Garc?a Cenoz M, Castilla J, Gallardo V, P?rez E, Vega T, Rodriguez C, Quinones C, Mart?nez E, Gim?nez J, Vanrell JM, Castrillejo D, Serrano MC, Ramos JM, Larrauri A. Early estimates of the effectiveness of the 2011/12 influenza vaccine in the population targeted for vaccination in Spain, 25 December 2011 to 19 February 2012. Euro Surveill. 2012;17(12)ii=20129. Available online: http://www.eurosurveillance.org/ViewArticle.aspx?ArticleId=20129
Date of submission: 06 March 2012 <HR>We present early estimates of influenza vaccine effectiveness (VE) in the population targeted for vaccination, during 25 December 2011 to 19 February 2012. The adjusted VE was 55% (95% CI: 3 to 79) against any type of influenza virus and 54% (95% CI: 1 to 79) against influenza A(H3N2) virus. This suggests a moderate protective effect of the vaccine in the targeted population in a late influenza epidemic with limited match between vaccine and circulating strains.
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