Why is AIDS rampant in Africa?

Africans have more sexual partners than anywhere else. Although many African countries have curbed the spread of HIV through educational programs, distribution of condoms and drugs, the HIV infection rate on the African continent is still high. In most cases, these plans have little effect. This deteriorating situation forces AIDS experts to reconsider the old theory about the spread of AIDS in Africa. Except sub-Saharan Africa, most HIV carriers are injecting drug users, sex workers and extremely promiscuous gay men, who may have hundreds of different sexual partners every year. But most Africans infected with HIV claim that they never take drugs, go whoring or engage in prostitution, and there are not many sexual partners. In order to explain why the infection rate is so high, scientists have put forward various theories, from malnutrition to HIV mutation to sexual customs. In the 1980 s, Australian demographer John? Caldwell insists that HIV is spreading rapidly in Africa because Africans have more sexual partners than people in other places. Caldwell's views have not attracted people's attention for many years. But recently, including the University of California epidemiologist James? Scientists, including Kim, began to explore this theory again. He thinks this may be the only possible explanation. Some research results do show that, on average, Africans have more sexual partners than western countries. For example, in Zimbabwe, 33% of adults are infected with HIV. Research on sexual behavior in this country shows that most people have one or three sexual partners within a year.