For about the past decade, activists and advocates have been working hard to educate the world on a very important scientific fact about living with HIV: that undetectable equals untransmittable (U=U). U=U is a now globally accepted scientific consensus that simply means when a person living with HIV reaches an undetectable viral load (also sometimes called virally suppressed) for six months or longer, they are virtually unable to transmit the virus to a sexual partner — even without the use of condoms.