Outbreak of Swine-origin Influenza A ( H 1 N 1 ) Virus

Abstract

Influenza has been recognized as a respiratory disease in swine since its first appearance concurrent with the 1918 „„Spanish flu‟‟ human pandemic. All influenza viruses of significance in swine are type A, subtype H1N1, H1N2, or H3N2 viruses. Swine Influenza is a respiratory disease of pig caused by Type A influenza viruses. Influenza A causes moderate to… (More)

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