Human toxocariasis in rural Brazilian Amazonia: seroprevalence, risk factors, and spatial distribution. The American journal of tropical medicine and hygiene [Am J Trop Med Hyg] Journal article | | Title | Human toxocariasis in rural Brazilian Amazonia: seroprevalence, risk factors, and spatial distribution. | | Author(s) | Rubinsky-Elefant G, da Silva-Nunes M, Malafronte RS, Muniz PT, Ferreira MU | | Institution | Laboratory of Seroepidemiology and Immunobiology, Institute of Tropical Medicine of São Paulo, São Paulo, Brazil. guitare@usp.br | | Source | Am J Trop Med Hyg 2008 Jul; 79(1):93-8. | | MeSH | Animals
Antibodies, Helminth
Brazil
Cats
Cross-Sectional Studies
Humans
Immunoglobulin G
Risk Factors
Rural Population
Seroepidemiologic Studies
Toxocara canis
Toxocariasis
| | Abstract | This population-based cross-sectional study of 403 rural settlers in Brazilian Amazonia revealed an overall rate of IgG seropositivity to Toxocara canis excretory-secretory larval antigen of 26.8% (95% confidence interval [CI], 22.5-31.4%). Multilevel logistic regression analysis identified current infection with hookworm (odds ratio [OR], 2.32; 95% CI, 1.11-4.86) and residence in the most recently occupied sectors of the settlement (OR, 1.81; 95%CI, 1.3-2.52) as significant risk factors for Toxocara seropositivity; age > 14 years (OR, 0.46; 95% CI, 0.28-0.73) and the presence of cats in the household (OR, 0.57; 95% CI, 0.32-1.02) appeared to be protective. Two significant high-prevalence clusters were detected in the area, together comprising 38.9% of the seropositive subjects; households in the clusters had slightly lower socioeconomic status and were less likely to have cats as pets. The obstacles for controlling human toxocariasis in this and other tropical rural settings are discussed. | | Language | eng | | Pub Type(s) | Journal Article
Research Support, Non-U.S. Gov't
| | PubMed ID | 18606770 |
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