Fig. 2

Travel times to health facilities from areas with potential for VHF spillover, Nigeria and the Central African Republic (CAR). a The travel times in hours to health facilities in Nigeria, a country with an extensive facility network (green points). b The travel time in hours to the more unevenly distributed health facilities (green points) in CAR. c, d Nationally ranked travel times, with the most remote locations presented in dark blue and the most accessible locations in yellow, with health facilities presented in red. Areas in-country in white have no VHF spillover potential