Epidemiological survey of urinary schistosomiasis in southeastern Mauritania.
Nine villages in the Sahelian Western Hodh Region of Mauritania, West Africa, were surveyed for infection with Schistosoma haematobium. A total of 983 subjects were randomly selected (single stage cluster sampling) and they provided specimens. The populations of five villages were highly infected with prevalence rates exceeding 50% among children under 16 years of age and peak prevalences ranging from 75% to 100% for children 6-10 or 11-15 years old. Mean densities of infection reached their peak for the same age classes with geometric means ranging from 28 to 265 eggs/10 ml urine. No difference in prevalence or mean density was found between males and females after age adjustment. Frequency distributions of egg outputs were not random but aggregated. An indirect screening technique, based on urine analysis reagent strip findings, was able to identify 98% of the most infected subjects (greater than or equal to 50 eggs/10 ml urine).
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006417:Hematuria / Q000175:diagnosis; D006801:Humans; D007223:Infant; D008297:Male; D008435:Mauritania; D011507:Proteinuria / Q000175:diagnosis; D011934:Reagent Strips; D012553:Schistosomiasis haematobia / Q000175:diagnosis / Q000453:epidemiology*
D011934:Reagent Strips