At least 51 endemic or potential endemic viral infectious diseases have been reported in Gabon 28 (Table 1) . Among them, 22 are of zoonotic origin and involve 12 families of viruses. The most represented are Flaviviridae (dengue virus, yellow fever virus (YFV), zika fever virus), Poxviridae (monkeypox virus (MPXV)), Filoviridae (ebola and marburg Viruses), Arenaviridae (lassa fever virus), Bunyaviridae (RVFV) and Togaviridae (chikungunya virus).