Virus ancestor to HIV older than believed

An ancient predecessor to the virus that causes AIDS evolved in wild primates many millions of years earlier than previously believed, according to research published Monday from the Stanford University School of Medicine.

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<p><a href="http://www.physorg.com/news147424078.html">Virus ancestor to HIV older than believed</a></p> <p>An ancient predecessor to the virus that causes AIDS evolved in wild primates many millions of years earlier than previously believed, according to research published Monday from the Stanford University School of Medicine.</p>