Swine Flu Hits Pandemic Level It's official: The world is facing its first flu pandemic in 41 years. The forthcoming declaration by the World Health Organization is a confirmation that a new flu virus has emerged and is quickly circling the globe. And while the current strain remains mild, experts say there's no telling what the virus may mutate into over the next year.
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Swine Flu Hits Pandemic Level

Richard Harris Reports On The Flu's Evolution On Morning Edition

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