Medicine: Encephalitis Vaccine

Around the world, in hot climes and cool, flourishes a group of viruses that attack the central nervous system, causing encephalitis (inflammation of the brain). Many of these viruses—which scientists have classified in two distinct families labeled "A" and "B"—have defied the efforts of virologists and immunologists to devise protective vaccines. Now Johns Hopkins University's Dr. Winston H. Price reports what appears to be a major breakthrough in the war against the encephalitides. The technique depends on family similarity: immunity against two or three members of the B virus family, it appears,...

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