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Map of specimen collection sites in this study: two VL patients’ residences in Sadao District (6°38′08.3″ N, 100°25′35.6″ E and 6°36′05.2″ N, 100°29′07.9″ E) and the unaffected area in Rattaphum District (7°01′19.2″ N, 100°07′53.1″ E), Songkhla Province, southern Thailand. The satellite map was modified from the accessible public domain (http://earthexplorer.usgs.gov/; accessed on 6 October 2022).
