Fig. 1

Geographic distribution of hyperendemic areas of Malaria and Lyme disease in the US. Counties with high mortality and morbidity rates of malaria where the National Malaria Eradication Program was carried out in 1945–1949 [10] are in light brown. Malaria hyperendemic states are in shown in pink. High Lyme disease counties are those with > = 10 human cases in 2016 (County level Lyme disease data [26] excluding FL) in dark brown; the hyperendemic states are in green. The map was created by the authors using QGIS open source software. The administrative country level data were obtained from DIVA-GIS free spatial data depository (www.diva-gis.org)