A parasitological survey of refugees based in Juba, Sudan, involving 241 faecal samples, revealed that 66% of the population harboured intestinal helminths. The most commonly found infection was hookworm (36%), followed by Schistosoma mansoni (26%), Strongyloides stercoralis (20%), Hymenolepis nana (11%), Ascaris lumbricoides (1.2%), Trichuris trichiura (0.8%) and Taenia sp. (0.4%). Many of the specimens (42%) harboured a single infection, 21% had double, 2% triple and 1% quadruple infections. Parasite prevalences and intensities were analysed in relation to age, sex, religion and occupation: females (70%) were found to be more infected than males (64%); Muslims (50%) were less infected than Christians (68%) and agriculturalists (90%) were the most infected occupational group.

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Strongyloides stercoralis Trichuris trichiura helminth refugee agricultural worker human sex difference Sudan feces analysis religion Ascaris lumbricoides school child Adolescent male occupation Schistosoma mansoni preschool child female Ancylostomatoidea Hymenolepis nana Article Vermes major clinical study adult parasite prevalence superinfection Christia age Trichuris Taenia helminthiasis intestine parasite hookworm Child