Collection sites in Cameroon of samples used in the current study. The collection sites in Cameroon were abbreviated as follows: CP, Campo, locations Oveng, Melen, and Grothes (CPOV, CPLM, and CPGR, respectively); DJ, Djoum; EK, Ekom; LM, Lomie; GR, Gribi. C. A. R., Central African Republic, EQUA.Gui., Equatorial Guinea, D. R. Congo, Democratic Republic of the Congo.