AIDS Vaccine Prevents Some HIV Infections

by Richard Knox, NPR

Researchers say that a new AIDS vaccine is somewhat protective against the strain of HIV that is circulating in Southeast Asia. The vaccine, which combines two earlier vaccines that failed to protect people, was 31 percent effective in a Thai study. Experts say the finding is significant progress toward developing a vaccine that might be successful one day.

Broadcast Dates

• All Things Considered, September 24, 2009