Why is southern Africa so badly hit?
The major factor, says Tony Barnett in his book AIDS in the Twenty-First Century, has been the way old social structures have collapsed in the past century. Migrant labor, reliance on long-distance truckers, the frequent movement of armies, and urbanization all have unraveled patterns of authority and norms of sexual relationships, facilitating the spread of HIV. Another key factor has been the high incidence of prostitution
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