background: infectious bronchitis virus (ibv) is the causative agent of avian infectious bronchitis, which is characterized by respiratory, reproductive, and renal signs. ibv is a highly variable virus with a large number of genotypes. s1 gene sequencing has been used for molecular epidemiological studies and genotypic characterization of ibv. objective: to better understand the molecular epide...

background: avian infectious bronchitis (ib), with avianinfectious bronchitis virus (ibv) as the causing agent, is a ubiquitous endemicdisease of the chicken with devastating effects on its industry. a viralmembrane surface protein called s  notonly induces neutralizing antibodies but also plays an important role in virusbinding and entry to host cells. technically, s1 protein gene sequencing a...

Introduction: Infectious bronchitis (IB), caused by infectious bronchitis virus (IBV), is an acute and highly contagious disease in chickens. IBV is mainly considered a respiratory infection, other clinical manifestations, including renal, enteric and reproductive signs can be observed. Aim: Since there has been no study on evaluation of changes in biochemical parameters during IB infection, th...

background and aims: infectious bronchitis virus (ibv) causes an acute, highly contagious respiratory and kidney disease of chickens which results in significant economic losses in commercial broilers, layers and breeders. rapid identification of ibv serotypes involved in respiratory complex is a problem in the differential diagnosis. materials and methods: in this study, a single and multiplex...

Infectious bronchitis is a disease of the upper respiratory tract chickens caused by Gammacoronavirus (infectious virus, IBV). Severe economic losses are IBV due to reduction in egg production and/or quality layers addition poor feed conversion and increased condemnations broiler chickens. The extreme variability this virus part its RNA genome, which predisposes it mutations generates genetic v...

280 Characterization of infectious bronchitis virus isolates from backyard flocks. AAAP abstract † 281 Recombination in avian gamma-coronavirus infectious bronchitis virus (IBV). 282 Evaluation of possible interference between Arkansas and Massachusetts vaccine serotypes. AAAP abstract † 283 Interactions between multivalent attenuated live infectious bronchitis virus (IBV) vaccines in one-day-o...

The aim of this study was to provide information on the molecular characteristic and the phylogenic relationship of infectious bronchitis viruses (IBV) strains in Bushehr province in comparison to other strains reported in the Middle East. Samples were collected from broiler flocks in Bushehr province during 2014 - 2015. These flocks had respiratory problems such as gasping, sneezing and bronch...

Background and Aims: Infectious bronchitis (IB), caused by infectious bronchitis virus (IBV), is an acute and highly contagious disease in chickens. IBV is considered mainly as a respiratory infection, other clinical manifestations, including renal, enteric and reproductive signs can be observed. Since there has been no study on evaluation of changes in biochemical parameters during IB infect...

Infectious bronchitis virus (IBV) is prevalent in all countries with an intensive poultry industry, with the incidence of infection approaching 100% in most locations. Vaccination is only partially successful due to the continual emergence of antigenic variants. At many sites, multiple antigenic types are simultaneously present, requiring the application of multiple vaccines. Although many coun...