RT Journal Article SR Electronic(1) A1 Ducrot, C A1 Calavas, D A1 Baron, T A1 Agrech, A E A1 Coudert, M A1 Savey, M YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.05.09.00011-es