USA Today examines several scientific breakthroughs that researchers say “could be key to reducing new HIV infections.” “Doctors are hopeful not because of a single discovery, but because of a string of breakthroughs over the past two or three years, says Diane Havlir, a professor at the University of California-San Francisco,” the news service writes. “The power comes from putting them together,” Havlir, who is also an AIDS 2012 co-chair, said, according to USA Today. The news service discusses “landmark findings” in the areas of treatment as prevention, adult male circumcision, microbicides, and vaccines, among others (Szabo, 7/18).