CDC’s latest Vital Signs Report finds just 30 percent of the 1.2 million Americans living with HIV have the virus under control. Among those who don’t have their virus in check, two-thirds have been diagnosed, but are no longer in care. When used consistently, antiretroviral treatment can keep HIV at very low levels in the body (known as viral suppression), allowing people with HIV to live longer, healthier lives and substantially reducing the likelihood that they will transmit the virus to others.