Multistate foodborne hepatitis A outbreak among European tourists returning from Egypt– need for reinforced vaccination recommendations, November 2012 to April 2013 Sane, J and MacDonald, E and Vold, L and Gossner, C and Severi, E and on behalf of the International Outbreak Investigation Team, collective, Eurosurveillance, 20, 21018 (2015), https://doi.org/10.2807/1560-7917.ES2015.20.4.21018