Pivotal study in Africa finds that HIV medications prevent HIV infection

An international study has demonstrated that individuals at high risk for HIV infection who took a daily tablet containing an HIV medication -- either the antiretroviral medication tenofovir or tenofovir in combination with emtricitabine -- experienced significantly fewer HIV infections than those who received a placebo pill. These findings are clear evidence that this new HIV prevention strategy, called pre-exposure prophylaxis (or PrEP), substantially reduces HIV infection risk.

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