Cluster of cases of hepatitis A with a travel history to Egypt, September-November 2008, France Couturier, E and Roque-Afonso, A M and Letort, M J and Dussaix, E and Vaillant, V and de Valk, H, Eurosurveillance, 14, 19094 (2009), https://doi.org/10.2807/ese.14.03.19094-en