A recent Harvard study suggests HIV prevention methods — such as condom use, regular testing, and abstinence — are not as effective in Africa.
Researchers say male circumcision and reducing sexual partners would have a greater impact on stemming the AIDS pandemic within the continent.
For more, Farai Chideya talks with one of the paper's lead authors, Daniel Halperin — senior research scientist at the Harvard School of Public Health Department of Population and International Health.
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