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A consideration of economic impact of schistosomiasis.

An attempt is made to estimate the economic effects of schistosomiasis, a disease known to be endemic in 71 countries or islands with a total population of about 1 362 million persons, of whom approximately 124 905 800 are infected. These data are based on prevalence rates representing, for the most part, single stool or urine examinations; the actual number of cases is undoubtedly much greater. This analysis refers only to resource loss attributable to reduced productivity. The annual loss from complete and partial disability is estimated to be US $445 866 945 in Africa, US $755 480 in Mauritius, US $16 527 275 in South-West Asia, US $118 143 675 in South-East Asia, and US $60 496 755 for the Americas. The total estimated annual world loss amounts to US $641 790 130 but this sum does not include the cost of public health programmes, medical care, or compensation for illness.