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emergence of infections with schistosoma mansoni in the dhofar governorate, oman.infections with schistosoma mansoni were identified in an area of dhofar (oman), where this parasite had been virtually absent during recent years and was reported only very sporadically before 1992. in the present survey, performed late in 2001, between 1 and 13% of children (n=519) were found to excrete eggs (one kato-katz-smear) in four schools, from four different villages, but no infections were detected in additional five schools (n=281). infections were light (<72 eggs/g of faeces) in 19 ...200314516925
ecological and molecular studies on emerging schistosomiasis mansoni in dhofar governorate, sultanate of oman.the recent detection of some cases of autochtonous schistosomiasis mansoni in dhofar, oman, prompted a search for the transmission sites. the five field surveys we conducted from november 2000 to february 2002 provided ecological data on schistosomiasis in dhofar. twenty-eight water bodies situated within 8-160 km from salalah, the largest city of dhofar and at altitudes of up to 900 m, were surveyed for freshwater snails. biomphalaria arabica was found in 15 of them. three sites (tibraq, sigini ...200312631319
schistosomiasis in the southern region of oman: vector snails and serological identification of patients in several locations.the snail biomphalaria arabica is apparently ubiquitous in the south of oman (dhofar province). snails bred in the laboratory were susceptible to infection with miracidia of schistosoma mansoni (puerto rican strain). the snail bulinus wrighti, a potential intermediate host of s. haematobium, was found for the first time in dhofar. human sera from five localities had antibodies against adult worm antigens and in particular against sm31/32. the prevalence of seropositive patients was 28% of 47 far ...19948064941
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