Ongoing hepatitis A outbreak in Europe 2013 to 2014: imported berry mix cake suspected to be the source of infection in Norway 
Guzman-Herrador, B and Jensvoll, L and Einöder-Moreno, M and Lange, H and Myking, S and Nygård, K and Stene-Johansen, K and Vold, L, Eurosurveillance, 19, 20775 (2014), https://doi.org/10.2807/1560-7917.ES2014.19.15.20775