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...

BACKGROUND: Avian infectious bronchitis is considered as an important viral disease worldwide. Genotyping based on the S1 subunit of spike protein gene of the causative agent, avian infectious bronchitis virus, can be used to classify IBV isolates. Objective: This survey was carried out to characterize the infectious bronchitis virus (IBV) genotypes circulating in Iran and determine their preva...

Infectious bronchitis virus (IBV), the coronavirus of the chicken (Gallus gallus), is one of the foremost causes of economic loss within the poultry industry, affecting the performance of both meat-type and egg-laying birds. The virus replicates not only in the epithelium of upper and lower respiratory tract tissues, but also in many tissues along the alimentary tract and elsewhere e.g. kidney,...

background and aims: adenovirus is one of the causative agents of viral conjunctivitis. approximately an average of 40% of viral conjunctivitis is due to adenovirus infection. the rate of infection is usually the highest during the spring and summer months. in this study attempt was made to evaluate the incidence of conjunctivitis due to adenovirus infection in patients referred to one of the a...

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...