| Abstract
| - Abstract. A cross-sectional study of all age groups of a hospital population which had been widely exposed to urinary tract bilharziasis is reported. All successful intravenous pyelograms performed on African and Indian patients at King Edward VIII Hospital, Durban, during 1964, comprising 1,525 investigations, were reviewed for evidence of bilharziasis, and classified according to race, sex, age and type of lesion. All 67 patients with manifest, active bilharziasis in whom lesions were found were below the age of 40 years. Among the remaining subjects in whom ova were not detected, definite bilharzial sequelae were found in 27. There were 16 others with doubtful bilharzial lesions. Definite sequelae were found in only 5 of 497 patients over the age of 40 years. Despite the frequency of infection, this study suggests that severe chronic sequelae of bilharziasis occur only in a very small proportion of patients in Durban.
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