Research continues to show AIDS drugs prevent sexual transmission of HIV

A European study of nearly 1,000 gay male couples who had sex without condoms – where one partner had HIV and was taking antiretroviral drugs to suppress it – has found the treatment can prevent sexual transmission of the virus. After eight years of follow-up of the so-called serodifferent couples, the study found no cases at all of HIV transmission within couples.

The study, which was conducted by researchers from the University College London and the University of Copenhagen, was published in The Lancet journal.

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