Epidemiology of human common coronavirus acquisition in pilgrims. Issue 37 (September 2020) - Dao, Thi Loi; Hoang, Van Thuan; Ly, Tran Duc Anh; Goumballa, Ndiaw; Courjon, Johan; Memish, Ziad; Sokhna, Cheikh; Raoult, Didier; Parola, Philippe; Gautret, Philippe