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Research into preventive treatments will continue, however, as an NIH leader declared a vaccine "essential" to ending the widespread disease.
Original Article: U.S. cancels trial after finding vaccine doesn't prevent HIVNEXT ARTICLE
A vaccine is a biological preparation that improves immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism, and is often made from weakened or killed forms of the microbe, its toxins or one ...