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. 2011 Mar 17;16(11):19820.
doi: 10.2807/ese.16.11.19820-en.

Effectiveness of the 2010/11 seasonal trivalent influenza vaccine in Spain: preliminary results of a case-control study

C Savulescu  1 , S Jiménez-Jorge, S de Mateo, J Ledesma, F Pozo, I Casas, A Larrauri; cycEVA Study Team
Collaborators, Affiliations
Free article

Effectiveness of the 2010/11 seasonal trivalent influenza vaccine in Spain: preliminary results of a case-control study

C Savulescu et al. Euro Surveill. .
Free article

Abstract

We present preliminary results of a case-control study to estimate influenza vaccine effectiveness in Spain, from week 50 of 2010 to week 6 of 2011. The adjusted effectiveness of the vaccine in preventing laboratory-confirmed influenza due to any type of influenza virus was 50% (95% CI: -6 to 77%) for the trivalent seasonal vaccine and 72% (95% CI: 7 to 92%) for both trivalent seasonal and monovalent pandemic vaccines, suggesting a protective effect of seasonal vaccination lower than that reported for the previous season.

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