Hepatitis A outbreak in HIV-infected MSM and in PrEP-using MSM despite a high level of immunity, Lyon, France, January to June 2017 Charre, Caroline and Ramière, Christophe and Roque-Afonso, Anne-Marie and Chidiac, Christian and Zoulim, Fabien and Godinot, Matthieu and Koffi, Joseph and Scholtès, Caroline and Livrozet, Jean-Michel and HAV Lyon Study Group and Cotte, Laurent, Eurosurveillance, 22, 17-00742 (2017), https://doi.org/10.2807/1560-7917.ES.2017.22.48.17-00742