title: Influenza viral infection of swine in the United States 1988-1989.
abstract: Swine are an animal reservoir for influenza viruses capable of causing disease in humans. A serological survey in 1988-1989 demonstrates that subtype H1 influenza viruses continue to circulate at high frequency among swine in the north-central U.S.A. (average 51% incidence). Subtype H3 viruses antigenically similar to current human H3 viruses are circulating at low frequency (average 1.1%), particularly in the southeast U.S.A.
authors.affiliation: Department of Virology and Molecular Biology, St. Jude Children's Research Hospital, Memphis, Tennessee.
authors.forename: T M
authors.initials: TM
authors.lastname: Chambers
authors.forename: V S
authors.initials: VS
authors.lastname: Hinshaw
authors.forename: Y
authors.initials: Y
authors.lastname: Kawaoka
authors.forename: B C
authors.initials: BC
authors.lastname: Easterday
authors.forename: R G
authors.initials: RG
authors.lastname: Webster
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D015994:Incidence; D009980:Influenza A virus / Q000276:immunology; D009976:Orthomyxoviridae Infections / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology* / Q000276:immunology / Q000382:microbiology; D014481:United States / Q000453:epidemiology
chemical_list: D000914:Antibodies, Viral