TOPSHOT - A researcher with Franceville International Medical Research Centre (CIRMF, Centre International de Recherches Medicales de Franceville) collects bats in a net on November 25, 2020 inside a cave in the Zadie region in Gabon. - Working in remote recesses in the hearth of the Gabonese forest, scientists scour caves populated by bats, animals suspected of being at the origin of many epidemics transmitted to humans in recent years: the SARS in 2003, MERS in 2012, Ebola and now SARS-CoV-2 or novel coronavirus Covid-19. (Photo by STEEVE JORDAN / AFP)