HIV’s genetic code, hidden in old tissue, adds to signs of virus’ emergence

HIV’s genetic code, hidden in old tissue, adds to signs of virus’ emergence

HIV’s genetic code, extracted from a nub of tissue, adds to evidence of virus’ emergence in humans a century ago

By HELEN BRANSWELL

C. GOLDSMITH, P. FEORINO, E. L. PALMER, W. R. MCMANUS/CDC

Scientists at the University of Arizona were able to extract from the tissue a nearly complete genetic sequence of an HIV virus.

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