BANGKOK -- For the first time, an experimental vaccine has prevented infection with the AIDS virus, a watershed event in the deadly epidemic and a surprising result. Recent failures led many scientists to think such a vaccine might never be possible.
The vaccine - a combination of two previously unsuccessful vaccines - cut the risk of becoming infected with HIV by more than 31 percent in the world's largest AIDS vaccine trial of more than 16,000 volunteers in Thailand, researchers announced Thursday in Bangkok.
http://abclocal.go.com/wabc/story?se...lth&id=7030381
The vaccine - a combination of two previously unsuccessful vaccines - cut the risk of becoming infected with HIV by more than 31 percent in the world's largest AIDS vaccine trial of more than 16,000 volunteers in Thailand, researchers announced Thursday in Bangkok.
http://abclocal.go.com/wabc/story?se...lth&id=7030381
