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Epidemiol Infect. 1996 Jun;116(3):323-9.

Do intestinal parasites interfere with the seroepidemiologic surveillance of Schistosoma mansoni infection?

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  • 1Sección de Biohelmintiasis, Universidad Central de Venezuela, Caracas, Venezuela.

Abstract

In view of the known cross-reactivity of sera from patients with intestinal parasites to some Schistosoma mansoni antigens, field work was conducted in an area of Venezuela non-endemic for schistosomiasis using the routine immunoenzymatic assay (ELISA) with soluble egg antigen (SEA). False positive reactions represented 15.3% of the total population as determined by SEA-ELISA. SEA-immunoblotting of the false positive sera indicated that protein fractions of 91 and 80 kDa appear to be responsible for cross-reactivity. Sera from hookworm infected individuals produced a higher frequency and intensity of cross-reaction than other sera. SEA-fractions of 105, 54, 46, 42, 32, 25 and 15 kDa were the most specific.

PMID:
8666077
[PubMed - indexed for MEDLINE]
PMCID:
PMC2271428
Free PMC Article
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