U=U is shorthand for “Undetectable = untransmittable”. This means that if you have been taking ART (the combined medications for HIV-positive individuals) as prescribed and you have an undetectable viral load, you have very little to no risk of transmitting the virus to a sexual partner. The Center for Disease Control and Prevention affirmed this statement in 2017.
Read more about what a suppressed viral load means and which organizations are working to spreading the word about U=U: https://www.preventionaccess.org/undetectable. #ScienceNotStigma. Images provide by the Prevention Access Campaign, see more at http://positiveseries.org/.