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New, Noninfectious Vaccine Could Help Eliminate Polio

With only 74 cases of polio reported worldwide in 2015, the disease is well on its way to eradication. But re-emergence through accidental release from a biocontainment factory is a small but real risk. So researchers have developed a strain of poliovirus to use in a new generation of vaccine that could help stamp out the disease once and for all. The so-called cold-adapted strain is noninfectious, so there would be no outbreak if the poliomyelitis pathogen were ever to escape from a...

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