RT Journal Article SR Electronic(1) A1 Boccia, D A1 Pantosti, A A1 D'Ancona, F A1 Giannitelli, S A1 Monaco, M. A1 Salmaso, S YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.07.06.00422-fr