bn:01563077n
Noun Concept
Categories: long volume value, Webarchive template wayback links, 2009 flu pandemic by country, Medical outbreaks in the United States, 2009 disasters in the United States
EN
2009 flu pandemic in the United States  2009 swine flu pandemic in the United States  H1N1 in the United States  swine flu  2009 H1N1 flu outbreak in the United States
EN
The 2009 flu pandemic in the United States was caused by a novel strain of the Influenza A/H1N1 virus, commonly referred to as "swine flu", that was first detected on 15 April 2009. Wikipedia
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