Escola Nacional de Sa??de P??blica/ Funda????o Oswaldo Cruz
Abstract
Neste trabalho foi averiguado o contexto ambiental do surto de leptospirose ocorrido
no ver??o de 1996, na Zona Oeste do Rio de Janeiro, utilizando-se o Sistema de Informa????es Geogr??ficas
(SIG). As ??reas de risco foram estabelecidas segundo o mapeamento das regi??es sujeitas
?? inunda????o e de zonas em que h?? acumula????o de lixo dom??stico. Foram calculadas taxas de incid??ncia
da doen??a pela raz??o entre o n??mero de casos e a popula????o total em cada uma dessas
??reas. Maiores taxas de incid??ncia foram verificadas dentro da regi??o sujeita ?? inunda????o e em
torno daquelas de acumula????o de lixo. Os resultados evidenciam o papel de fatores de risco ambientais
e coletivos na determina????o da doen??a.The environmental context in which a leptospirosis outbreak took place during the summer of 1996 in the Rio de Janeiro Western Region was examined by using spatial analysis of leptospirosis cases merged with socio-demographic data using Geographic Information System (GIS). Risk areas were mapped based on flood and solid waste accumulation information for the region. Incidence rates were calculated for each area by the division of number of cases per total population in the specific areas. Higher rates were observed for census tracts inside the flood risk area and in the vicinities of waste accumulation sites. These findings are in agreement with the expected risk of leptospirosis, evidencing the role of environmental and collective factors in the determination of the disease
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