RT Journal Article SR Electronic(1) A1 Thornton, L A1 Fitzpatrick, F A1 de la Harpe, D A1 Brennan, S A1 Murphy, N A1 Connell, J A1 Humphreys, H A1 Smyth, E A1 Walshe, J J A1 Crean, M A1 O’ Flanagan, D YR T1 JF VO OP UL https://www.eurosurveillance.org/content/10.2807/esm.12.04.00700-es