Canine visceral leishmaniasis: Prevalence Ratio and spatial distribution of the risk for infection in the municipality of São Pedro, state of São Paulo, Brazil
DOI:
https://doi.org/10.57148/bepa.2021.v.18.35743Keywords:
Visceral Leishmaniasis, Dogs, Spatial analysis.Abstract
Visceral leishmaniasis (VL) is a vector-borne disease with a wide geographical distribution worldwide. In Brazil, this zoonotic disease has the dog (Canis familiaris) as its main reservoir. The aim of the study was to analyze the Prevalence Ratio for the canine visceral leishmaniasis (CVL) infection in areas with different amounts of dogs per property, and the spatial distribution of the risk - Relative Risk for infection for L.infantum by Censitary Sector in the city of São Pedro – SP, Brazil. Serological tests were carried out on 1,283 dogs, domiciled in 710 houses, and a dog was considered positive by the rapid immunochromatographic test, dual path platform - DPP® and the Enzime-Linked Immunosorbent Assay - ELISA. Prevalence Ratio was calculated by using the negative binominal regression type I, from the gamlss library and the Spatial Risk Ratio was obtained by Bayesian adjustment and spatial regression of the Censitary Sector in the same municipality. The results revealed that each additional dog per domicile could increase the Prevalence Ratio by 63%. There was a spatial risk increase in one of the Censitary Sector of up to 20% for L.infantum infection. We concluded that the current surveillance and control actions for visceral leishmaniasis should be prioritized and intensified within the Census Sectors identified as being of higher risk for infection by this study.
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Copyright (c) 2021 Osias Rangel, Matheus de Melo Murbach
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