cchfvirus/Madagascar-Plague-Risk-Mapping

Madagascar Plague Risk Mapping # Madagascar Plague Risk Mapping Plague continues to cause deadly outbreaks in Madagascar, yet health officials lack detailed maps showing where disease risk is highest. This detailed community-level risk assessment enables health authorities to target disease surveillance, prevention efforts, and resources to specific locations where plague is most likely to occur, potentially saving lives through earlier detection and response to outbreaks. This interactive web-based mapping application is designed to visualizing plague ecology, transmission risk, and species distribution data across Madagascar. Built with Leaflet.js, the application renders GeoTIFF raster layers directly in the browser and overlays vector data from GeoJSON sources, providing a comprehensive spatial decision-support tool for plague surveillance and research. # Citation Deka, M. A. (2026). A High-Resolution Geospatial Framework for Zoonotic Plague Risk Mapping in Madagascar. Zoonoses, 6(1). # Explore the interactive map: cchfvirus.github.io --- ## Overview This single-page HTML application loads and displays multiple geospatial datasets related to plague risk in Madagascar's central highlands (centered on the Antananarivo region). Users can toggle layers on and off, adjust opacity, query raster cell values, and interact with point and polygon features through popups. The map is designed for researchers, epidemiologists, and public health professionals working on plague ecology and risk assessment. --- ## Features ### **Basemaps** Two Esri basemaps are available, selectable via radio buttons in the layer control panel: - **Satellite Imagery** (default) – Esri World Imagery for high-resolution context - **Street Map** – Esri World Street Map for administrative and road reference ### **Risk Layers (Raster)** Four GeoTIFF raster layers are loaded and rendered client-side using the GeoRaster and GeoRasterLayer libraries. Each layer occupies a dedicate …