Rachel Baggaley, the World Health Organization's coordinator for HIV prevention and testing, told NBC News the latest study "adds to the clear and consistent evidence" that people on antiretroviral therapy and achieve viral suppression are not at risk of transmitting the virus to their partners.
Among almost 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. For the study, approximately 780 gay couples from 14 European countries, each with an HIV-infected Partner were accompanied in the Mediterranean for two years.
Its findings add to an earlier phase of the study which looked at HIV transmission risk for serodifferent heterosexual couples in the same circumstances.More news: Samsung is Canceling Galaxy Fold Preorders
"Our findings provide conclusive evidence for gay men that the risk of HIV transmission with suppressive ART is zero, " said Alison Rodger, "Our findings support the message of the global U=U campaign, that a suppressed viral load makes HIV untransmittable".
Previous research has shown zero risks for heterosexual couples passing on the virus when one person is taking HIV treatment, prompting UNAIDS to launch its undetectable untransmittable campaign. Our findings support the message of the worldwide U=U campaign that an undetectable viral load makes HIV untransmittable. But genetic tests showed that the transmissions were a result of the HIV-negative men having sexual relations with someone other than their regular partner.
"Diagnosis of HIV infection is hard in the early stages of infection when transmission is very efficient, and this limitation also compromises the treatment as prevention strategy."According to the National Aids Trust, 97% of people on HIV treatment in the United Kingdom have an undetectable level of the virus, meaning they can not pass it on".More news: Asia Bibi Finally Leaves Pakistan a Free Woman
She called for all people living with HIV to have access to testing and effective treatment. "I realize that numerous researchers and gatherings are as yet buckling down and I'm certain that like the achievement we've seen with the measles immunization and the polio antibody, that some time or another we'll have a similar accomplishment with a HIV antibody".
The findings of PARTNER 1 were revolutionary, providing real-world evidence of the preventative benefit of effective ART on top of the benefit for keeping the person living with HIV healthy.
"The Partner study has given us the confidence to say, without doubt, that people living with HIV who are on effective treatment can not pass the virus on to their sexual partners".More news: Raptors rout Philly 125-89 to take 3-2 lead
Deborah Gold, chief executive of National AIDS Trust said more should be done to get the message out to healthcare workers and the public. "It will make a great difference when you can't transmit the virus to your partner", Dr Mugo said.