SALK VACCINE FOR AIDS

POLIO'S CONQUEROR IS TAKING ON TODAY'S PLAGUE, BUT EXPERTS DOUBT HIS TREATMENT WILL PASS THE NEXT TEST

Salk and vaccine. the words somehow belong together-like Fleming and penicillin or Einstein and relativity. So when Dr. Jonas Salk, the developer of the first effective vaccine against polio, announced eight years ago that he was coming out of retirement to tackle AIDS, many people cheered-especially the growing numbers of patients infected with hiv. Who better to lead the charge against the current plague than the conqueror of an infamous childhood scourge? Within the scientific community, though, there was more doubt than expectation. AIDS was a tougher target than polio, and few experts believed that Salk's approach to making a vaccine...

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