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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 World Health Organization and the U.N. agency UNAIDS said the results “instilled new hope” in the field of HIV vaccine research, although researchers say it likely is many years before a vaccine might be available.
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.
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Since there are different strains of HIV throughout the world, I can understand that having a true vaccine to prevent infection (like we now have for measles and mumps) is a long way off, but this is great news.