RT Journal Article SR Electronic(1) A1 Kar-Purkayastha, I A1 Ingram, C A1 Maguire, H A1 Roche, A YR 2009 T1 The importance of school and social activities in the transmission of influenza A(H1N1)v: England, April – June 2009 JF Eurosurveillance VO 14 IS 33 SP 19311 OP DO https://doi.org/10.2807/ese.14.33.19311-en UL https://www.eurosurveillance.org/content/10.2807/ese.14.33.19311-en