AIDS is a major problem in Africa, where over 60% of those infected with HIV/AIDS live. In 2005, 2.3 million people died from AIDS in Africa alone, with 1 person dying every 13 seconds. Treatment has increased over the past decade but remains unavailable or unaffordable for many Africans. Without treatment, AIDS is shortening life spans and leaving millions of African children orphaned. The disease threatens to decrease populations and has already killed many teachers in African schools.