AIDS resistance secret may be in blood

U.S. scientists say the absence of a specific marker in the blood and tissues of certain monkeys might be part of the key to understanding AIDS resistance.

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<p><a href="http://www.physorg.com/news90525076.html">AIDS resistance secret may be in blood</a></p> <p>U.S. scientists say the absence of a specific marker in the blood and tissues of certain monkeys might be part of the key to understanding AIDS resistance.</p>