Royston, this new approach is to test everyone, but only in high risk regions.

"By testing people in high-risk regions and immediately treating putting the patients on medications that reduce their viral-loads, Williams said that public health officials could "render HIV-infected people not infectious."

"We've been using drugs to save lives, but not stop the infection," he said, adding that proper treatments makes someone 25 times less infectious. "It's time to look beyond that."

Kenneth H. Meyer, professor of medicine and community health at Brown University, said that public health officials have been moderately successful in getting people onto anti-viral treatments. But as people live longer, the trend of more new infections than deaths will continue, especially in high-risk regions.

He cited statistics that while the number of HIV- infected people in the United States is 1 in 300, it's much higher in hot spots like Washington, D.C., where the prevalence is 1 in 15 people"
http://news.aaas.org/2010/0220battling-hivaids---test-all-treat-all.shtml