%0 Journal Article %A Cilla, G %A Montes, M %A Artieda, J %A Piñeiro, L %A Arriola, L %A Pérez-Trallero, E %T Measles genotypes D4 and G3 reintroduced by multiple foci after 15 years without measles virus circulation, Gipuzkoa, the Basque Country, Spain, March to June 2011 %D 2011 %J Eurosurveillance %V 16 %N 43 %P 19997 %R doi:https://doi.org/10.2807/ese.16.43.19997-en %K measles %U https://www.eurosurveillance.org/content/10.2807/ese.16.43.19997-en