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Geographical overview of the study sites in West and Central Africa. Red dots represent sampling sites (1) Benin: Kpomasse, Ouidah; (2) Nigeria: Awka, Nnewi, Onitsha; (3) Gabon: Lambaréné; (4) Republic of Congo: Goma Tsé-Tsé District, Brazzaville. The map was created with the ggplot2 package V3.4.0 in R Version 4.2.2.
