Spillover of a hepatitis A outbreak among men who have sex with men (MSM) to the general population, the Netherlands, 2017 Friesema, Ingrid HM and Sonder, Gerard JB and Petrignani, Mariska WF and Meiberg, Annemarie E and van Rijckevorsel, Gini GC and Ruijs, Wilhelmina LM and Vennema, Harry, Eurosurveillance, 23, 1800265 (2018), https://doi.org/10.2807/1560-7917.ES.2018.23.23.1800265