Dados do Trabalho

Título

SPATIAL PATTERNS OF CANINE VISCERAL LEISHMANIASIS ANALYZE USING A VEGETATION INDEX - NDVI

Introdução

Visceral leishmaniasis (VL) is a severe disease that mainly affects canines in the urban areas of the Brazilian states. Vegetation is a key factor in the VL cycle, as it is directly related to the main vector, Lutzomyia longipalpis. However, it lacks the spatial patterns of the urban vegetation related to the canine cases of the disease.

Objetivo (s)

The aim of this paper was to analyze spatial patterns of canine VL using a vegetation index (normalized difference vegetation, NDVI).

Material e Métodos

We performed a serosurvey including 8,146 dogs in 2014 in Votuporanga, Brazil. We ran binary logistic regression models and found that neither dense or sparse vegetation by itself increased the chances of having CVL in an area of influence of 100m radius (Odds ratio - OD of 0.86, 0.83, respectively, both p<0.001), but the number of vegetation patches increased the cases disease by 124% (OR 1.24, confidence interval 1.14 - 1.35, p<0.001).

Resultados e Conclusão

The canine disease is mostly in areas with both vegetated and non-vegetated uses of the land, demonstrating the adaptation of the vector in disturbed areas.

Palavras-chave

canine visceral leishmaniasis, (NDVI) normalized difference vegetation)