Localization of kala-azar in the endemic region of Bihar, India based on land use/land cover assessment at different scales

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Gouri S. Bhunia
Shreekant Kesari
Nandini Chatterjee
Vijay Kumar
Pradeep Das *
(*) Corresponding Author:
Pradeep Das | drpradeep.das@gmail.com

Abstract

Land cover, a critical variable in the epidemiology of kala-azar, can be remotely characterized by customizing and integrating “state-of-the-art” imagery at different spatial scales from different sensors onboard satellites. A study was conducted at four levels (national, state, district and village) investigating the role of land use/land cover (LULC) for leishmaniasis transmission resulting in a framework highlighting the links between LULC and areas endemic for the disease. Distribution maps were analysed by a probabilistic approach (Bayesian classifier) which produced a set of “suitability estimates” based on the probability of sand fly presence. The development of a sound knowledge of each link in the predicted sequence of satellite views offering an extraordinary opportunity to support the mapping of kala-azar endemicity and stratification of areas suitable for sand fly habitats across the country as well as at the local scale.

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