Two outbreaks of diarrhoea in nurseries in Norway after farm visits, April to May 2009 Møller-Stray, J and Eriksen, H M and Bruheim, T and Kapperud, G and Lindstedt, B A and Skeie, Å and Sunde, M and Urdahl, A M and Øygard, B and Vold, L, Eurosurveillance, 17, 20321 (2012), https://doi.org/10.2807/ese.17.47.20321-en