2009 swine flu pandemic in North America

The 2009 swine flu pandemic in North America, part of a pandemic in 2009 of a new strain of influenza A virus subtype H1N1 causing what has been commonly called swine flu, began in the United States or Mexico.

See also: 2009 swine flu pandemic by country, 2009 swine flu pandemic timeline, 2009 swine flu pandemic in the United States, and 2009 swine flu pandemic in the United States by state
Main article: 2009 swine flu pandemic
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