Africa: Hygiene, Overpopulation & The Future

The simple practice of hygiene seems to be beyond many in sub-Sahara Africa. The 25% of those 800 million Africans that are infected with HIV/AIDS is proof. And the corollary overpopulation that goes with unprotected sex underscores also. One wonders if the Africans don't get the concept of hygiene, what future do they have?