BANGKOK (AP) -- 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.
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.
the benefit is modest, ''it's the first evidence that we could have a
safe and effective preventive vaccine,'' Col. Jerome Kim told The
Associated Press. He helped lead the study for the U.S. Army, which sponsored it with the National Institute of Allergy and Infectious Diseases.
institute's director, Dr. Anthony Fauci, warned that this is ''not the
end of the road,'' but said he was surprised and very pleased by the
''It gives me cautious optimism about the possibility of
improving this result'' and developing a more effective AIDS vaccine,
Fauci said. ''This is something that we can do.'' (read more here)