No Vaccine in Sight for HIV/AIDS, Scientists Say

Scientists attending the 21st International AIDS Conference in Durban say there is still no vaccine in sight to prevent HIV/AIDS infections. While it is impossible to predict when such a goal will be reached, says Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, he is optimistic about researchers' progress. "It is impossible to say exactly how far we are, but one thing we can say is that over the last seven years we have made important...

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