Study offers new clues to effective HIV vaccine
Slight differences in five amino acids in a protein called HLA-B may explain why certain people resist the human immunodeficiency virus, U.S. researchers said in a study that lends new clues about how to make a vaccine to prevent AIDS. "For a long time, we've known that some people progress extremely rapidly when they get infected, and others can stay well for three decades and never need treatment and still look entirely well," said Dr. Bruce Walker of Massachusetts General Hospital and Harvard University, whose study appears in the journal Science.
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