title: Identification of four genotypes of H3N2 swine influenza virus in pigs from southern China.
abstract: In 2011, four H3N2 swine influenza viruses (SIVs) were isolated from nasal swabs of four pigs (800 nasal swabs were collected from pigs showing influenza-like symptoms) in Guangdong province, China. Four different genotypes of H3N2 appeared among pigs in southern China, including wholly human-like H3N2 viruses, intermediate (1975) double-reassortant human H3N2 viruses (resulting from reassortment between an early human lineage and a recent human lineage), recent double-reassortant human H3N2 viruses, and avian-like H3N2 viruses. Because pigs can support the reassortment of human and avian influenza viruses, our surveillance should be enhanced as a part of an overall pandemic preparedness plan.
authors.affiliation: MOA Key Laboratory of Animal Vaccine Development, Ministry of China, South China Agricultural University, Guangzhou, 510642, Guangdong, People's Republic of China.
authors.forename: Jidang
authors.initials: J
authors.lastname: Chen
authors.forename: Xinliang
authors.initials: X
authors.lastname: Fu
authors.forename: Ye
authors.initials: Y
authors.lastname: Chen
authors.forename: Shuyi
authors.initials: S
authors.lastname: He
authors.forename: Yun
authors.initials: Y
authors.lastname: Zheng
authors.forename: Zhenpeng
authors.initials: Z
authors.lastname: Cao
authors.forename: Wenxin
authors.initials: W
authors.lastname: Yu
authors.forename: Han
authors.initials: H
authors.lastname: Zhou
authors.forename: Shuo
authors.initials: S
authors.lastname: Su
authors.forename: Guihong
authors.initials: G
authors.lastname: Zhang
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002681:China; D019267:Hemagglutinin Glycoproteins, Influenza Virus / Q000235:genetics*; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000235:genetics*; D053122:Influenza A Virus, H3N2 Subtype / Q000235:genetics* / Q000302:isolation & purification; D007251:Influenza, Human / Q000821:virology; D008969:Molecular Sequence Data; D009976:Orthomyxoviridae Infections / Q000175:diagnosis / Q000662:veterinary / Q000821:virology*; D016865:Reassortant Viruses / Q000235:genetics* / Q000302:isolation & purification; D017423:Sequence Analysis, RNA; D013552:Swine; D013553:Swine Diseases / Q000175:diagnosis / Q000821:virology
chemical_list: D019267:Hemagglutinin Glycoproteins, Influenza Virus