Scientists Say New Strain of Swine Flu Virus Is Spreading to Humans in China

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Of flu that could become The next pandemic. How's this for timing? The scientists say. About 10% of swine industry workers they tested in China have already been exposed to the virus, which they say is descended from the 2009 strain of swine flu, which calls the first global flu pandemic in 40 years. And there are signs of the virus is becoming Mohr infectious. The scientists say there's no immediate threat but that the virus and its human hosts need to be closely monitored. To keep it that way. Figure BARKER CBS NEWS

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