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ECOLOGICAL STUDY AND RISK MAPPING OF LEISHMANIASIS IN AN ENDEMIC AREA OF BRAZIL BASED ON A GEOGRAPHICAL INFORMATION SYSTEMS APPROACH
Cães
Sistema de informação geográfica
Pontos quentes
Brasil
Eco-epidemiologia
dogs
geographical information system
hotspots
Brazil
eco-epidemiology
Author
Affilliation
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Bioquímica de Proteínas e Peptídeos. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz. Laboratório de Geoprocessamento. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Laboratório de Bioquímica e Fisiologia de Insetos. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz Laboratório INERU. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Laboratório de Geoprocessamento. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz. Laboratório de Bioquímica e Fisiologia de Insetos. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz Laboratório INERU. Rio de Janeiro, RJ, Brasil.
Abstract
Visceral leishmaniasis is a vector-borne disease highly influenced by eco-epidemiological factors. Geographical
information systems (GIS) have proved to be a suitable approach for the analysis of environmental components that affect
the spatial distribution of diseases. Exploiting this methodology, a model was developed for the mapping of the distribution
and incidence of canine leishmaniasis in an endemic area of Brazil. Local variations were observed with respect to infection
incidence and distribution of serological titers, i.e. high titers were noted close to areas with preserved vegetation, while low
titers were more frequent in areas where people kept chickens. Based on these results, we conclude that the environment
plays an important role in generating relatively protected areas within larger endemic regions, but that it can also contribute
to the creation of hotspots with clusters of comparatively high serological titers indicating a high level of transmission compared
with neighbouring areas.
Keywords in Portuguese
Leishmaniose visceralCães
Sistema de informação geográfica
Pontos quentes
Brasil
Eco-epidemiologia
Keywords
visceral leishmaniasisdogs
geographical information system
hotspots
Brazil
eco-epidemiology
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