A Canadian study strongly suggests that treating people who have the AIDS virus can help prevent its spread to others.
Researchers say that new HIV infections dropped in British Columbia as more people went on AIDS drugs. The number of new infections in that Canadian province has been cut in half since 1996, when modern AIDS drugs became available.
In the United States, the study may boost efforts to get more people tested and quickly treated. Programs to do that are under way now in Washington, New York and San Francisco.
Results of the study are being presented Sunday at the International AIDS Conference in Vienna.
Copyright 2010, Associated Press