| an investigation of a cholera epidemic in butiama village of the mara region, tanzania. | an outbreak of cholera between 19 march and 10 april 1986 in butiama village of the mara region, tanzania, was investigated in a case-control study, to try to find out the source of infection and its mode of transmission. sixty-seven patients, including 11 deaths occurring before 29 march, were used to describe the epidemic, but 26 of the first patients were interviewed using a questionnaire, and each was compared with age and sex-matched healthy next-door neighbours. they were questioned about ... | 1989 | 2607096 |