RT Journal Article SR Electronic(1) A1 Gonçalves, G A1 Correia, A M A1 Palminha, P A1 Rebelo-Andrade, Helena A1 Alves, A YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.10.09.00567-pt