An HIV discovery from researchers led by a University of North Carolina-Chapel Hill scientist is the biggest scientific breakthrough of 2011, according to the journal Science.
The study found that early treatment with anti-retroviral drugs sharply cut the risk that infected patients will transmit HIV, which is the virus that causes AIDS. That finding could help slow the spread of the disease, perhaps dramatically.
The journal announced picks for the year's top breakthroughs in its latest edition, which was published online Thursday afternoon. In addition to the HIV study, there were nine runners-up.
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