RT Journal Article SR Electronic(1) A1 Cuny, C A1 Kuemmerle, J A1 Stanek, C A1 Willey, B A1 Strommenger, B A1 Witte, W YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.11.01.00595-es