Does Truvada prevent HIV infection in uninfected people?

The iPrEx study found that the daily use of Truvada provides 99% protection against HIV infection when taken seven days a week.
Other two clinical trials have also proved that Truvada works in preventing the acquisition of HIV in other populations; the Partners PrEP study in serodiscordant couples (where one member is HIV positive and the other is HIV negative) and the TDF2 study in heterosexual men and women at risk of acquiring HIV. Two other trials, FEM PrEP and VOICE that enrolled women in Africa were not able to demonstrate the efficacy of Truvada for HIV prevention.

 

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