A28 Phylogeographic analysis of HIV-2 ANRS CO5 cohort reveals new trends in HIV-2 epidemic patterns in West Africa. (17th April 2018) - Visseaux, B; Bertine, M; Storto, A; Damond, F; Collin, F; Chêne, G; Matheron, S; Charpentier, C; Hué, S; Descamps, D; ,