Isolation of 4/91 Type of Infectious Bronchitis Virus as a New Variant in Japan and Efficacy of Vaccination Against 4/91 Type Field Isolate

Among field isolates of infectious bronchitis virus (IBV) from recent outbreaks, some isolates that were classified into the 4/91 genotype, by analysis of the S1 gene, have been confirmed to be a new variant in Japan. To elucidate the characteristics of these isolates, pathogenicity in chicks and th...

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Veröffentlicht in:	Avian diseases 2008-12, Vol.52 (4), p.618-622
Hauptverfasser:	Shimazaki, Yohko, Horiuchi, Takashi, Harada, Makiko, Tanimura, Chieko, Seki, Yoshihisa, Kuroda, Yorifumi, Yagyu, Kazuhiro, Nakamura, Shigeyuki, Suzuki, Shoko
Format:	Artikel
Sprache:	eng
Schlagworte:	4/91 Animals Aves Body weight Chick Embryo Chickens chicks Coronavirus Infections - epidemiology Coronavirus Infections - prevention & control Coronavirus Infections - veterinary Coronavirus Infections - virology disease challenge Disease outbreaks Eggs Epidemiology Genetic Variation genotype Genotypes Infections infectious bronchitis Infectious bronchitis virus Infectious bronchitis virus - classification Infectious bronchitis virus - genetics Infectious bronchitis virus - immunology Infectious bronchitis virus - isolation & purification infectious bronchitis virus strain 4/91 isolation Japan Japan - epidemiology Neutralization Tests - veterinary pathogenicity Poultry Diseases - epidemiology Poultry Diseases - prevention & control Poultry Diseases - virology Research s Respiratory symptoms Specific Pathogen-Free Organisms strain differences strains Vaccination Vaccination - standards Vaccination - veterinary vaccine vaccines Viral Vaccines - standards Viruses
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