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An end to the Aids epidemic could be in sight after a study found men whose HIV infection was fully suppressed by antiretroviral drugs had no chance of infecting their partner. The success of the medicine means that if everyone with HIV were fully treated, there would be no further infections.

Among nearly 1,000 male couples across Europe where one partner with HIV was receiving treatment to suppress the virus, there were no cases of transmission of the infection to the HIV-negative partner during sex without a condom. Although 15 men were infected with HIV during the eight-year study, DNA testing proved that was through sex with someone other than their partner who was not on treatment.

HIV

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“It’s brilliant – fantastic. This very much puts this issue to bed,” said Prof Alison Rodgers from University College London, the co-leader of the paper published in the Lancet medical journal. Earlier studies have also shown the treatment protects heterosexual couples where one partner has HIV.

She added: “Our findings provide conclusive evidence for gay men that the risk of HIV transmission with suppressive ART [antiretroviral therapy] is zero. Our findings support the message of the international U=U campaign that an undetectable viral load makes HIV untransmittable.

“This powerful message can help end the HIV pandemic by preventing HIV transmission, and tackling the stigma and discrimination that many people with HIV face.

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