%0 Journal Article %A De Mateo, S %A Larrauri, A %A Martin, C %A Grupo de Vigilancia de la Gripe en España, Collective %T Increased influenza activity in Spain from mid-December 2004 %D 2005 %J Weekly releases (1997–2007) %V 10 %N 3 %P 2620 %R doi:https://doi.org/10.2807/esw.10.03.02620-en %K influenza %U https://www.eurosurveillance.org/content/10.2807/esw.10.03.02620-en