UNDETECTABLE = UNTRANSMITTABLE
This means that:
- You are taking antiretroviral therapy (HIV meds)
- You have an 'undetectable HIV viral load' – that means your HIV is fully suppressed or 'asleep' for more than 6 months
- You are having regular HIV viral load blood tests and haven’t missed any doses of medicines since your last blood test.
How do we know this?
From a clinical trial called The Partner Study.
This study followed more than 1000 couples, where one partners was living with HIV and the other was HIV negative. The partner living with HIV was on antiretroviral therapy and their viral load was suppressed for more than 6 months. The couples lived across Europe and included both gay and straight couples. The couples were in stable relationships and were already choosing to not use condoms.
Over several years the couples had sex, without using a condom, more than 58,000 times. There were ZERO transmissions of HIV from the partner living with HIV taking treatment, to their HIV negative partner.
That proved that if you live with HIV but take your medicines really well you will are not infectious and will not pass HIV onto your sexual partners even if you don’t use a condom or it splits/falls off. This led to the phrase U=U.