Another possible food-borne outbreak of hepatitis A in the Netherlands indicated by two closely related molecular sequences, July to October 2011 Fournet, N and Baas, D and van Pelt, W and Swaan, C and Ober, H J and Isken, L and Cremer, J and Friesema, I and Vennema, H and Boxman, I and Koopmans, M and Verhoef, L, Eurosurveillance, 17, 20079 (2012), https://doi.org/10.2807/ese.17.06.20079-en