HIV: What does U equals U mean?

U=U stands for undetectable equals untransmittable. But what exactly is U=U and what does it mean for the average person living with HIV?

In a nutshell, U=U states that people living with HIV who are on antiretroviral therapy and have been undetectable (less than 40 copies in a milliliter of blood) for at least six months cannot infect others through sexual transmission.

Three international studies showed no HIV transmissions among mixed-status couples when the partner with HIV was undetectable for 6 months or longer. This included more than 75,000 acts of reported condomless sex among mixed-status heterosexual and gay male couples.

The studies were HPTN 052, PARTNER and Opposites Attract. To date worldwide there are no verified reports of someone getting HIV from a partner who is undetectable.

Watch Karl Schmid's report above for more.

AIDS Walk Los Angeles raises much-needed funds for APLA Health and +20 other HIV/AIDS service organizations.

The event takes place this Sunday in downtown Los Angeles.