Large South African Study Shows Challenges Of Treatment As Prevention

Science: Large study spotlights limits of HIV treatment as prevention
“One of the great unknowns in HIV/AIDS research is how much prevention bang you get for your treatment buck. Yes, antiretroviral (ARV) drugs make individuals less infectious, but how many people have to be on treatment to slow spread in a community and even bring epidemics to an end? A giant new study in South Africa failed to show any reduction in HIV transmission in communities even when nearly 50 percent of infected people received the drugs…” (Cohen, 7/25).