W Van Bortel (wim.vanbortel@ecdc.europa.eu)1, F Dorleans2, J Rosine2, A Blateau2, D Rousset3, S Matheus3, I Leparc-Goffart4, O Flusin4, C M Prat4, R Césaire5, F Najioullah5, V Ardillon6, E Balleydier7, L Carvalho6, A Lemaître8, H Noël8, V Servas9, C Six10, M Zurbaran8, L Léon8, A Guinard 11, J van den Kerkhof12, M Henry13, E Fanoy12,14,15, M Braks12, J Reimerink12, C Swaan12, R Georges16, L Bro...