What is Swine influenza?
[[File:Sow with piglet.jpg|thumb|right|Pigs can have more than one type of flu at the same time. This means that viruses can mix [[gene]]s and become a type of flu that could cause a pandemic.]] '''Swine influenza virus''' is a [[virus]] that is common in [[pig]]s. This type of [[influenza]] virus can also infect [[Human|humans]] and birds. Swine influenza virus is sometimes called '''SIV''' or '''swine flu'''. Swine flu is common in pigs. Normally, it only infects people who have been in close contact with pigs. However, the disease can spread from one person to another.<ref>{{cite news |url=http://www.cnn.com/2009/HEALTH/04/25/swine.flu/index.html |title=More cases of swine flu reported; WHO warns of health emergency |author1=Cuevas Mayra|author2=Curley Ann|author3=Hellerman Caleb|author4=Quijano Elaine|author5=Candiotti Susan |date=25 April 2009}}</ref> Swine flu can cause [[fever]], [[disorientation]] (not being clear-headed), [[stiffness]] of the joints, [[vomit]]ing, and loss of [[consciousness]]. Sometimes this ends in death.<ref>{{cite news|url=http://www.cnn.com/2009/HEALTH/04/25/swine.flu/index.html |title=World Health Organization: Swine flu could spread globally |publisher=CNN.com |accessdate=2009-04-25}}</ref> There are different types, or strains, of swine flu. They are called [[H1N1]],<ref name = Iowa /> [[H1N2]],<ref name = Iowa>{{cite web|url=http://www.vetmed.iastate.edu/departments/vdpam/swine/diseases/chest/swineinfluenza/ |work=Swine Diseases (Chest) |title=Swine Influenza|publisher=[[Iowa State University]] College of Veterinary Medicine}}</ref> [[H3N1]],<ref>[http://www.eurekalert.org/pub_releases/2006-11/asfm-tft111706.php eurekalert] {{Webarchive|url=https://web.archive.org/web/20170915071038/https://www.eurekalert.org/pub_releases/2006-11/asfm-tft111706.php |date=2017-09-15 }} Tips from the Journals of the American Society for Microbiology - Novel H3N1 Swine Influenza Virus Identified in Pigs in Korea</ref> [[H3N2]],<ref name = Iowa /> and [[H2N3]].<ref>[http://www.pnas.org/content/104