Pinning down an effective way to combat the spread of the human immunodeficiency virus, the viral precursor to AIDS, has long been a challenge for scientists and physicians, because the virus is an elusive one that mutates frequently and, as a result, quickly becomes immune to medication.
http://www.freerepublic.com/focus/f-news/3074634/posts
http://www.freerepublic.com/focus/f-news/3074634/posts
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