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[intestinal geohelminthosis in man and domestic animals in the riverside sections of the valdivia river basin, chile].in march-october 1987 were analyzed 1295 coprological specimens in a sample of the human population who lives in riverside localities in the valdivia river basin, chile. a 23.6% of examined persons presented infection by one or more helminth species. the prevalence of infection by ascaris lumbricoides, trichuris trichiura and trichostrongylidae gen. sp. were 15.5, 12.7 and 0.2%, respectively. the prevalence of human ascariosis and trichuriosis were greater in pre-school and school children. the ...19958762668
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