Investigation of Cross Neutralization of Egyptian Variant 2 among both Classic and Variant Vaccinal Infectious Bronchitis Viruses
نویسندگان
چکیده
منابع مشابه
Emergence of variant avian infectious bronchitis virus in India
Background: Infectious bronchitis virus (IBV) is the etiological agent of an acute and highly contagious disease. Infectious bronchitis (IB) affects chicken of all ages and poses major economic loses to the poultry industry worldwide. The continuous evolution of the spike protein (S1) of IBV is responsible for the prevalence of many serotypes/genotypes around the world. Multipl...
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Infectious bronchitis (IB) virus genome codes for four structural proteins, among which the S1 subunit of spike glycoprotein comprises the major epitopes to induce neutralizing antibodies. This study involved the comparison of the full S1 sequences of five IB viruses, namely two Massachusetts and three 793/B serotypes, isolated from IB outbreaks during 2001-2002, with all other Iranian an...
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Infectious bronchitis virus (IBV) infections cause great economic losses to the poultry industry worldwide, and the emergence of new variant strains complicates disease control. The present study investigated the genetic and protectotypic features of newly emerged Korean IBV strains. A phylogenetic analysis showed that several recent isolates formed 2 different clusters (new cluster 1 and 2), w...
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Despite the existence of an active vaccination program, recently emerged strains of nephropathogenic infectious bronchitis virus (IBV) in Korea have caused significant economic losses in the poultry industry. In this study, we assessed the pathogenic and antigenic characteristics of a K-IIb type field strain of IBV that emerged in Korea since 2003, such as Kr/Q43/06. Specific pathogen free 1-we...
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| Infectious bronchitis virus (IBV) is the causative agent of an acute and highly contagious disease affecting the respiratory, renal and/or reproductive systems of chicken called infectious bronchitis disease. Controlling of this disease needs continuous identification of the circulating strains and genotypes. In the present study, six IBV samples were isolated from different poultry farms loc...
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ژورنال
عنوان ژورنال: Zagazig Veterinary Journal
سال: 2017
ISSN: 2357-075X
DOI: 10.21608/zvjz.2017.7865