title: Characterization of avian H3N3 and H1N1 influenza A viruses isolated from pigs in Canada.
abstract: H3N3 and H1N1 influenza A viruses were isolated from Canadian pigs in 2001 and 2002. These viruses are phylogenetically related to waterfowl viruses and antigenically distinct from reference swine influenza viruses. The isolation of these viruses reemphasizes the potential for interspecies transmission of influenza viruses from waterfowl to pigs in North America.
authors.affiliation: Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Dr., Madison, WI 53706, USA.
authors.forename: Alexander I
authors.initials: AI
authors.lastname: Karasin
authors.forename: Keith
authors.initials: K
authors.lastname: West
authors.forename: Suzanne
authors.initials: S
authors.lastname: Carman
authors.forename: Christopher W
authors.initials: CW
authors.lastname: Olsen
mesh_terms: D000818:Animals; D001483:Base Sequence; D001717:Birds; D002170:Canada; D017931:DNA Primers; D053118:Influenza A Virus, H1N1 Subtype; D009980:Influenza A virus / Q000145:classification* / Q000302:isolation & purification; D008969:Molecular Sequence Data; D010802:Phylogeny; D020133:Reverse Transcriptase Polymerase Chain Reaction / Q000379:methods; D013552:Swine / Q000821:virology*
chemical_list: D017931:DNA Primers