title: Cholera outbreak in southern Tanzania: risk factors and patterns of transmission.
abstract: To identify risk factors and describe the pattern of spread of the 1997 cholera epidemic in a rural area (Ifakara) in southern Tanzania, we conducted a prospective hospital-based, matched case- control study, with analysis based on the first 180 cases and 360 matched controls. Bathing in the river, long distance to water source, and eating dried fish were significantly associated with risk for cholera. Toxigenic Vibrio cholerae O1, biotype El Tor, serotype Ogawa, was isolated in samples from Ifakara's main water source and patients' stools. DNA molecular analyses showed identical patterns for all isolates.
authors.affiliation: Ifakara Health Research and Development Centre, Ifakara, Tanzania.
authors.forename: C J
authors.initials: CJ
authors.lastname: Acosta
authors.forename: C M
authors.initials: CM
authors.lastname: Galindo
authors.forename: J
authors.initials: J
authors.lastname: Kimario
authors.forename: K
authors.initials: K
authors.lastname: Senkoro
authors.forename: H
authors.initials: H
authors.lastname: Urassa
authors.forename: C
authors.initials: C
authors.lastname: Casals
authors.forename: M
authors.initials: M
authors.lastname: Corachán
authors.forename: N
authors.initials: N
authors.lastname: Eseko
authors.forename: M
authors.initials: M
authors.lastname: Tanner
authors.forename: H
authors.initials: H
authors.lastname: Mshinda
authors.forename: F
authors.initials: F
authors.lastname: Lwilla
authors.forename: J
authors.initials: J
authors.lastname: Vila
authors.forename: P L
authors.initials: PL
authors.lastname: Alonso
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D002648:Child; D002675:Child, Preschool; D002771:Cholera / Q000453:epidemiology* / Q000635:transmission; D004196:Disease Outbreaks; D005260:Female; D006801:Humans; D008297:Male; D011446:Prospective Studies; D012307:Risk Factors; D012424:Rural Population; D013636:Tanzania / Q000453:epidemiology; D014734:Vibrio cholerae / Q000235:genetics / Q000302:isolation & purification*