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Washtenaw County Public Health Department - H1N1 (Swine) Flu Information
What is swine influenza?
It is a respiratory illness that occurs in pigs and is caused by Type A influenza swine virus. Swine flu virus does not normally affect humans but in rare cases it can be passed from pigs to humans. The current strain is a new swine influenza virus that is passing from human to human. The symptoms of swine flu are similar to seasonal human influenza.