%0 Journal Article %A Jimenez-Jorge, S %A Mateo, S de %A Pozo, F %A Casas, I %A Garcia Cenoz, M %A Castilla, J %A Gallardo, V %A Perez, E %A Vega, T %A Rodriguez, C %A Quinones, C %A Martinez, E %A Gimenez, J %A Vanrell, JM %A Castrillejo, D %A Serrano, Mc %A Ramos, JM %A Larrauri, A %T 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. %D 2012 %@ 1025-496X %U http://hdl.handle.net/10668/745 %X 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. %K Vacunas contra la Influenza %K Influenza Vaccines %K Efectividad %~