The World Health Organization raised its pandemic alert to 5, its second-highest level Wednesday, indicating the outbreak of swine flu that originated in Mexico is nearing widespread human infection. Dr. Margaret Chan, the U.N. agency’s … The announcement came as the number of people infected with swine flu increased rapidly across the world, and health officials scrambled to get more information about the virus — which has no vaccine. Phase 5 alert means there is …
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Swine Flu - Pandemic Alert level Raised To 5 : Homeland Security News