XLPharmacy has learned about some new prescription drugs now used to treat human immunodeficiency virus infection in adults may prevent the vaginal transmission of HIV. In this latest study, the mice were given the anti-retroviral drugs once a day for seven consecutive days starting 48 hours before being challenged intra-vaginally with HIV. None of the mice that had been given the anti-retroviral drugs contracted HIV; however, seven of the eight mice that didn't receive the anti-retroviral drugs tested positive for the infection as early as two weeks post-infection. If this pattern proves to be true in subsequent trials, women someday might have to take one pill a day in order to potentially prevent vaginal transmission of HIV.
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