Prevalence and spatial distribution of intestinal parasitic infections in a rural Amazonian settlement, Acre State, Brazil

Cadernos de Saúde Pública

Estéfano Alves De Souza²  Mônica Da Silva-nunes²  Rosely Dos Santos Malafronte¹  Pascoal Torres Muniz¹  Marly Augusto Cardoso¹  Marcelo Urbano Ferreira² 

[1] ,Universidade de São Paulo Instituto de Ciências Biomédicas São Paulo São Paulo ,Brasil

关键词: Helminths;    Parasites;    Amazonian Ecosystem;    Helmintos;    Parasitos;    Ecossistema Amazônico;   

DOI  :  10.1590/S0102-311X2007000200019

来源: SciELO

【 摘 要 】

A population-based survey of the prevalence and spatial distribution of intestinal parasitism was carried out in an agricultural settlement in the Amazon Basin of Brazil (Granada, Acre State). More than half (53.4%) of the 429 stool specimens from subjects in all age groups, living in 113 households, had cysts, ova, or larvae of intestinal parasites. The most prevalent parasites were Giardia duodenalis (19.6%) and soil-transmitted helminths (12.7%); 105 (24.5%) subjects were infected with more than one species of parasite. Significant age-related differences in prevalence were only found for G. duodenalis (children < 1 year and adults > 30 years were less affected). Six households (5.3%), situated within a radius of 690m, comprised 48.1% of all subjects harboring soil-transmitted helminths in our study area. Households within this cluster were poorer and more crowded than those outside the cluster. The observed spatial clustering of infections with soil-transmitted helminths provides valuable information for the spatial targeting of sanitary interventions in this area.

【 授权许可】

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