名詞: n.
H1N1 Flu (Swine Flu)
a new influenza virus causing illness in people. This new virus was first detected in people in April 2009 in the United States. Other countries, including Mexico and Canada, have reported people sick with this new virus. This virus is spreading from person-to-person, probably in much the same way that regular seasonal influenza viruses spread.

swine flu

CDC
Centers for Disease Control and Prevention

http://www.cdc.gov/h1n1flu/images.htm

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