Monday, February 22, 2010

Many Wives

Many wives apparently reduce the spread of HIV/AIDS.  

The story: Africans don’t have more sex than Americans; both have roughly the same number of partners in a lifetime. But Americans are more likely to be serial monogamists, while Africans are more likely to have concurrent partners (outside marriage). These networks allow HIV to spread more easily. Polygyny, it seems, is the exception.

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