US: Tambien en emergencia por influenza

By CAM SIMPSON

WASHINGTON -- Federal officials declared a health emergency on Sunday, as they confirmed 20 cases of swine flu in five states, mobilized medicine stockpiles, and warned the public that the number and severity of incidences were likely to increase.

The officials urged calm, saying the declaration was largely meant to free up resources and precautionary in nature. Homeland Security Secretary Janet Napolitano, appearing with other officials at a news conference at the White House on Sunday, compared it to the kind of alert that goes up before officials know how severe a gathering storm might become.

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