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00925njm 22002777a 4500 dc Kissling, E author Valenciano, M author I-MOVE Case-Control Studies Team author Jimenez-Jorge, Silvia author Mateo-Ontañon, Salvador de author Pozo Sanchez, Francisco author Casas Flecha, Inmaculada author Larrauri, Amparo author 2012-04-12 To provide an early estimate of 2011/12 influenza vaccine effectiveness (VE), we conducted a multicentre case-control study based on seven sentinel surveillance networks. We included influenza-like illness cases up to week 7/2012 from the vaccination target groups, swabbed less than eight days after symptom onset. Laboratory-confirmed influenza A(H3) cases were compared to negative controls. Adjusted VE was 43% (95% confidence interval: -0.4 to 67.7), suggesting low to moderate VE against influenza A(H3) in the early 2011/12 season. Euro Surveill. 2012 Apr 12;17(15):20146. http://hdl.handle.net/20.500.12105/15488 22516046 1560-7917 Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin Early estimates of seasonal influenza vaccine effectiveness in Europe among target groups for vaccination: results from the I-MOVE multicentre case-control study, 2011/12