1. Ummmmm ... do third-world countries like those have reasonably complete/accurate stats?
2. Picking a country from the list, the anti-malarials travelers to Uganda are advised to use are Atovaquone/Proguanil (Malarone) and Doxycycline. The latter is inexpensive and readily available. The chances that the recommendations for Liberia, for example, being something different are quite high. The malaria bug has different drug-resistances in different areas.
IOW, the claim may be accurate, but without significant supporting info it's dubious.