where have the highest number of hiv infections been reported
Almost all of the regionâs nations have generalized HIV epidemicsâthat is, their national HIV prevalence is greater than 1%. In eight countries, 10% or more of adults are estimated to be HIV-positive. South Africa has the highest number of people living with HIV in the world (7.1 million). Swaziland has the highest prevalence in the world (27.2%). Western and Central Africa.