Maissonasse, et al. (2020) [40] In vivo study on macaques Different strategies of treatment were compared with placebo, including HCQ alone or in combination with AZM, administrated either before or after viral load When HCQ was administrated as pre-exposure prophylaxis, it did not protect against infection acquisition.Neither HCQ nor HCQ + AZM had beneficial effects in improving viral infection’s symptoms. Not reported.