Swine flu is less severe than expected

Scientists studying the virus are concluding that it isn't as deadly as its 1918 counterpart, or even the average flu. As the World Health Organization raised its infectious disease alert level Wednesday and health officials confirmed the first death linked to swine flu inside U.S. borders, scientists studying the virus are coming to the consensus that this hybrid strain of influenza -- at least in its current form -- isn't shaping up to be as fatal as the strains that caused some previous pandemics.

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