When famed Harvard Nobel Laureate John Franklin Enders announced at a Manhattan meeting three years ago that he had isolated measles virus, his fellow virologists stood up and cheered. It would not be long, they hoped, before a vaccine could be developed to wipe out a disease that sends one child in 4,000 to institutions for the feebleminded. But the first live virus vaccine developed by Enders left much to be desired; four of five children got severe fevers, roughly half developed a rash. Last week, after much toil by Enders and others, a...
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