Many doctors have long suspected that the drug AZT could benefit the estimated 100,000 to 200,000 Americans who are infected with the AIDS virus but who have not yet developed full-blown symptoms. Last week a federal study showed that they were right. "This is the first clear proof that early intervention makes a difference," says Jerome Groopman, a physician with New England Deaconess Hospital in Boston. "It's exciting, and it's a finding of real importance."
The research, conducted by a division of the National Institutes of Health, shows that azidothymidine, or AZT, dramatically slows the multiplication of the AIDS virus in...
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