US ‘very concerned’ about swine flu outbreak

US ‘very concerned’ about swine flu outbreak:

"US ‘very concerned’ about swine flu outbreak
AFP

Friday, April 24, 2009

US medical authorities expressed strong concern Friday about an unprecedented multi-strain swine flu outbreak that has killed at least 60 people in Mexico and infected seven people in the United States.

“It’s very obvious that we are very concerned. We’ve stood up emergency operation centers,” Centers for Disease Control and

Prevention (CDC) spokesman Dave Daigle told AFP.
One major source of concern was that the virus included strains from different types of flu.
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