Http://www.cdc.gov/swineflu/swineflu_you.htm
CDC - Influenza (Flu) | Swine Flu and YouWhat is swine flu? Swine Influenza (swine flu) is a respiratory disease of pigs caused by type A influenza viruses that causes regular outbreaks in pigs. People do not normally get swine flu, but human infections can and do happen. Swine flu viruses have been reported to spread from person-to-person, but in the past, this transmission was limited and not s