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The risk of schistosomiasis in Zimbabwean triathletes


A.K. Jeans
M.P. Schwellnus

Abstract

A study was carried out to determine the risk of schistosomiasis in triathletes in Zimbabwe. The prevalence of schistosomiasis in 30 triathletes (24 males, 6 females) was compared with that in 24 non-triathlete controls after the 1989/90 triathlon season. All the subjects found to be infected were then treated with praziquantel (40 mg/kg). The seasonal incidence of schistosomiasis in triathletes was then determined in a prospective study during the 1990/91 season. Schistosomiasis was diagnosed by urine and stool microscopy for ova, blood eosinophil counts and serological bilharzial fluorescent antibody tests for IgM and IgG antibodies: There was a significantly (P < 0,05) higher prevalence of schistosomiasis among the triathietes (80%) than among the controls (38%). The seasonal incidence of schistosomiasis was 64%. Exposure of triathletes to fresh-water dam swimming in Zimbabwe poses a significant risk for the development of schistosomiasis.


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eISSN: 2078-5135
print ISSN: 0256-9574