[Dengue in Burkina Faso (ex-Upper Volta): seasonal epidemics in the urban area of Ouagadougou].

During the rainy season of 1982 30 patients (29 european and 1 voltaic) presented with an intense dengue-like syndrome in Ouagadougou city. 73.3% of these cases possessed anti-flavivirus fluorescent antibodies while 30%, were positive for specific anti-Dengue IgM antibodies. Vero type E 6 cell cultures were used to isolate six strains of Dengue 2 virus; monoclonal antibodies were used for viral identification. These strains constitute the first isolates of human Dengue virus in Upper Volta. Authors present conditions of virus isolations, describe the observed syndrome and discuss the epidemiological interest of this outbreak.