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Characterization of H5N2 influenza viruses from birds in live poultry markets in USA Proceedings

by Webster, R.G; Bean, W.J; Kawaoka, Y; Senne, D; Animal Health Association, Richmond, Va. (EUA); 90. Annual Meeting of the United States Animal Health Association Louisville, Ky. (EUA) 19-24 Oct 1986.
Publisher: Richmond, Va. (EUA) 1986Description: p. 278-286.Subject(s): VIROLOGIA | VIROSIS | INFLUENZAVIRUS | VIRUS DE LA INFLUENZA AVIAR | AVES DOMESTICAS | DIAGNOSTICO DE LABORATORIO | MERCADOS | ESTADOS UNIDOS DE AMERICA | VIROLOGY | VIROSES | INFLUENZAVIRUS | AVIAN INFLUENZAVIRUS | DOMESTICATED BIRDS | LABORATORY DIAGNOSIS | MARKETS | UNITED STATES OF AMERICA | VIROLOGIE | VIROSE | INFLUENZAVIRUS | INFLUENZAVIRUS AVIAIRE | OISEAU DOMESTIQUE | DIAGNOSTIC DE LABORATOIRE | MARCHESummary: The H5N2 influenza viruses that appeared in domestic poultry in the USA in 1985-86 were characterized with monoclonal antibodies by sequence analysis of the HA (hemagglutinin) and NA (neuraminidase) genes, and by oligonucleotide mapping at the total RNAs. These studies showed that the H5N2 viruses isolated in 1986 were related to the Pennsylvania family of H5N2 isolates and are readily distinguished from other H5N2 isolates such as A/Quail/Ore/20719/86 (H5N2). The viruses are not highly pathogenic after experimental infection of chickens and replicate mainly in the respiratory tract. The H5N2 viruses showed evidence of continued variation and permitted discrimination between the different lineages. The H5N2 viruses of a particular lineage was maintained in an individual market for at least four months. The possibility exists that the live poultry markets may have been the immediate source of virus for domestic poultry in Pennsylvania both in April 1983 and in December 1985
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The H5N2 influenza viruses that appeared in domestic poultry in the USA in 1985-86 were characterized with monoclonal antibodies by sequence analysis of the HA (hemagglutinin) and NA (neuraminidase) genes, and by oligonucleotide mapping at the total RNAs. These studies showed that the H5N2 viruses isolated in 1986 were related to the Pennsylvania family of H5N2 isolates and are readily distinguished from other H5N2 isolates such as A/Quail/Ore/20719/86 (H5N2). The viruses are not highly pathogenic after experimental infection of chickens and replicate mainly in the respiratory tract. The H5N2 viruses showed evidence of continued variation and permitted discrimination between the different lineages. The H5N2 viruses of a particular lineage was maintained in an individual market for at least four months. The possibility exists that the live poultry markets may have been the immediate source of virus for domestic poultry in Pennsylvania both in April 1983 and in December 1985

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