RT Journal Article SR Electronic(1) A1 Miklaševics, E A1 Hæggman, S A1 Balode, A A1 Sanchez, B A1 Martinsons, A A1 Olsson-Liljequist, B A1 Dumpis, U YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.09.11.00485-fr