U.S. cancels test of experimental AIDS vaccine
Federal researchers on Thursday dropped plans for a large-scale test of an experimental AIDS vaccine developed by the National Institutes of Health - the latest fallout from the failure last September of a similar candidate from drugmaker Merck & Co. that may have left some volunteers more vulnerable to HIV infection.
Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said the decision to call off the proposed study was his alone, but followed months of meetings to debate the merits of proceeding with the experiment.