Is everybody who gets infected with the AIDS virus doomed to progress to full-blown AIDS? As it turns out, the answer is no. Some people carry the virus for years without experiencing any ill effects; the author of one recent study suggests that they never will. Two weeks ago, European researchers announced that some babies born with HIV (an inheritance from their HIV-positive mothers) appear to be able to shake the virus out of their systems. Some people even seem to be totally immune to infection despite repeated, prolonged exposure to HIV.
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