| hepatitis a and b infections in yaoundé, cameroon. | hepatitis a and b virus infections are common in the tropics. there is, however, no information concerning hepatitis a virus (hav) infection in cameroon, while data on the hepatitis b virus (hbv) infection are incomplete. sera from 272 subjects attending the central hospital, yaoundé, for blood donations or mild ailments were tested by an elisa technique for the presence of anti-hav total antibody; antibody was found in 217 (79.8%). when 188 subjects (randomly chosen from the 272) were further t ... | 1989 | 2787924 |