US responding as if swine flu will be pandemic

Monday, April 27, 2009 | 5:52 p.m. CDT

WASHINGTON — Confirming at least 40 cases of swine flu in the U.S., the Obama administration said Monday it was responding aggressively as if the outbreak would spread into a full pandemic. Officials urged Americans against most travel to Mexico as the virus that began there spread to the United States and beyond.

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