Medicine: Anticipating the Flu Virus

If the announcement had been made almost anywhere else, it would probably have been dismissed as one more false alarm. But the word came from the Pasteur Institute in Paris, fons et origo of epochal research into man's relationship with the microbes: Institute scientists had devised a vaccine to protect against the present generation of influenza virus and against generations yet unborn. The vaccine, said last week's announcement, will be available almost immediately.

The flu virus is notorious for its frequent mutations. About every ten years, on the average, the transformation is so marked that the antibody system of a person who...

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