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US health center studies swine flu virus
(Agencies)
Updated: 2009-04-27 17:29

US health center studies swine flu virus
A vial sits in ice at the County of San Diego Health and Services Agency in San Diego, California April 26, 2009. Governments around the world rushed on Sunday to check the spread of a new type of swine flu that has killed up to 81 people in Mexico and infected around a dozen in the United States. [Agencies]