Swine flu could kill hundreds of thousands in U.S. if vaccine fails, CDC says

As much as 40% of the workforce could be affected during the peak of a pandemic, health officials say, noting low resistance to the H1N1 virus and its persistence through the summer months. Hundreds of thousands of Americans could die over the next two years if the vaccine for the new H1N1 influenza is not effective and, at the pandemic's peak, as much...

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