What’s your evidence that disease burden was substantially different in Africa, as a whole, than anywhere else prior to industrialization?
This is not a controversial point. Warmer and tropical climates have always had higher parasite and disease loads than colder ones. If you disagree with basic stuff like this, the burden is on you.
Although in this case the relevant factor is that since humans originally evolved in Africa, it had more diseases that co-evolved with humans. Hence why South America, which has a cilmate similar to Africa had an even lower disease burden than Europe. At least until Europeans brought Africans, some of whom were infected with African diseases there.
This is not a controversial point. Warmer and tropical climates have always had higher parasite and disease loads than colder ones. If you disagree with basic stuff like this, the burden is on you.
Although in this case the relevant factor is that since humans originally evolved in Africa, it had more diseases that co-evolved with humans. Hence why South America, which has a cilmate similar to Africa had an even lower disease burden than Europe. At least until Europeans brought Africans, some of whom were infected with African diseases there.
You might want to look at Africa on a map, because it isn’t all tropical.
You seem to be thinking of Africa as a tiny place with uniform geography and climate and biome—it’s not.