In Africa, where knowledge about HIV transmission is low and the stigma attached to the virus is high, public health officials and AIDS experts are trying a variety of AIDS education methods that include radio programs, sporting events and even adult cinemas. Sub-Saharan Africa is home to 75% of the 40 million people infected with HIV/AIDS worldwide. Because only one in 1,440 African AIDS patients has access to antiretroviral drugs, HIV prevention efforts "may be the best hope" for the continent, Reuters Health reports.