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Swine influenza virus (SIV) or swine-origin influenza virus (S-OIV) refers to any strain of the influenza family of viruses that is endemic in pigs. [2] As of 2009, identified SIV strains include influenza C and the subtypes of influenza A known as H1N1 , H1N2 , H2N1, H3N1 , H3N2 , and H2N3 .
. ===References=== *Centers for Disease Control and Prevention > Key Facts about Swine Influenza (Swine Flu) Retrieved on April 30, 2009 English: The gastrointestinal tract , also called the digestive tract, alimentary canal, or gut, is the system of organs within multicellular animals that takes in food, digests it to extract energy and ...
The virus is a novel strain of the influenza virus, [2] for which existing vaccines against seasonal flu provided no protection. A study at the U.S. Centers for Disease Control and Prevention (CDC) published in May 2009 found that children had no preexisting immunity to the new strain but that adults, particularly those over 60, had some degree of immunity.
Swine influenza (also known as swine flu or pig flu) is a respiratory disease that occurs in pigs that is caused by the Influenza A virus. Influenza viruses that are normally found in swine are known as swine influenza viruses (SIVs). The three main subtypes of SIV that circulate globally are A(H1N1), A(H1N2), and A(H3N2).
CHICAGO (Reuters) -H5N1 bird flu was confirmed in a pig on a backyard farm in Oregon, the first detection of the virus in swine in the country, the U.S. Department of Agriculture said on Wednesday.
Pigs usually recover within 3–7 days after symptoms appear. Prevention and control measures include inactivated vaccines and culling infected herds. Influenza A virus subtypes H1N1, H1N2, and H3N2 are usually responsible for swine flu. [92] Some influenza A viruses can be transmitted via aerosols from pigs to humans and vice versa. [1]
This image is a derivative work of the following images: File:Digestive_system_diagram_en.svg licensed with PD-user . 2009-04-20T16:38:52Z Dbrouse 595x842 (209546 Bytes) Fixing the uvula label so it displays as text rather than a black box.
Wild birds that carry flu viruses in their guts and shed them in their poop are believed to be the main way H5N1 has been introduced onto farms. Still, experts say the windborne spread of bird flu ...