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• (author = "Webster, R G" AND subject = "Pathogenesis and Immunity")
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author = "Webster, R G" > : "Pathogenesis and Immunity" (x)
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Found 5 documents, displaying page 1 of 1

H9N2 Influenza Viruses Possessing H5N1-Like Internal Genomes Continue To Circulate in Poultry in Southeastern China

Author(s) : Guan, Y. , Shortridge, K. F. , Krauss, S. , Chin, P. S. , Dyrting, K. C. , Ellis, T. M. , Webster, R. G. , Peiris, M.
Description : The transmission of H9N2 influenza viruses to humans and the realization that the A/Hong Kong/156/97-like (H5N1) (abbreviated HK/156/97) genome complex may be present in H9N2 viruses in southeastern China necessitated a study of the distribution and characterization of H9N2 viruses in poultry in the...
Repository : Europe PubMed Central
Language(s) : English

Molecular Changes in the Polymerase Genes (PA and PB1) Associated with High Pathogenicity of H5N1 Influenza Virus in Mallard Ducks▿

Author(s) : Hulse-Post, D. J. , Franks, J. , Boyd, K. , Salomon, R. , Hoffmann, E. , Yen, H. L. , Webby, R. J. , Walker, D. , Nguyen, T. D.
Description : The highly pathogenic (HP) influenza viruses H5 and H7 are usually nonpathogenic in mallard ducks. However, the currently circulating HP H5N1 viruses acquired a different phenotype and are able to cause mortality in mallards. To establish the molecular basis of this phenotype, we cloned the human A/...
Repository : Europe PubMed Central
Language(s) : English

Continuing Evolution of H9N2 Influenza Viruses in Southeastern China

Author(s) : Choi, Y. K. , Ozaki, H. , Webby, R. J. , Webster, R. G. , Peiris, J. S. , Poon, L. , Butt, C. , Leung, Y. H. C. , Guan, Y.
Description : H9N2 influenza viruses are panzootic in domestic poultry in Eurasia and since 1999 have caused transient infections in humans and pigs. To investigate the zoonotic potential of H9N2 viruses, we studied the evolution of the viruses in live-poultry markets in Hong Kong in 2003. H9N2 was the most preva...
Repository : Europe PubMed Central
Language(s) : English

Immunogenicity and Protective Efficacy in Mice of Influenza B Virus Vaccines Grown in Mammalian Cells or Embryonated Chicken Eggs

Author(s) : Alymova, I. V. , Kodihalli, S. , Govorkova, E. A. , Fanget, B. , Gerdil, C. , Webster, R. G.
Description : The immunogenicity and protective efficacy of formalin-inactivated influenza B/Memphis/1/93 virus vaccines propagated exclusively in Vero cells, MDCK cells, or embryonated chicken eggs (hereafter referred to as eggs) were investigated. Mammalian cell-grown viruses differ from the egg-grown variant a...
Repository : Europe PubMed Central
Language(s) : English

Are Ducks Contributing to the Endemicity of Highly Pathogenic H5N1 Influenza Virus in Asia?†

Author(s) : Sturm-Ramirez, K. M. , Hulse-Post, D. J. , Govorkova, E. A. , Humberd, J. , Seiler, P. , Puthavathana, P. , Buranathai, C.
Description : Wild waterfowl are the natural reservoir of all influenza A viruses, and these viruses are usually nonpathogenic in these birds. However, since late 2002, H5N1 outbreaks in Asia have resulted in mortality among waterfowl in recreational parks, domestic flocks, and wild migratory birds. The evolution...
Repository : Europe PubMed Central
Language(s) : English
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Found 5 documents, displaying page 1 of 1