Infectious Bronchitis Immunity: Its Study in Chickens Experimentally Infected with Mixtures of Infectious Bronchitis Virus and Escherichia coli

Cross-immunity study of two experimentally oil-emulsion inactivated Infectious bronchitis vaccines in SPF chickens

A study has been carried out for determining of cross-immunity between Massachusetts (Mass) M41 and Iranian IR/773/2001 (793/B) strains of infectious bronchitis virus. Two groups of 20 three weeks old SPF chickens vaccinated subcutaneously with two oil-emulsions inactivated Infectious Bronchitis Vaccines (Mass M41 and Iranian IR/773/2001 strains) that had been manufactured in Razi institute in ...

Isolation and Identification of Infectious Bronchitis Virus from Commercial Chickens

Nephropathogenesis of chickens experimentally infected with various strains of infectious bronchitis virus.

Four-day-old specific-pathogen-free chickens were inoculated by eyedrop with four different strains (Gray, JMK, CV56b, and Wolgemuth) of infectious bronchitis virus (IBV). Birds were monitored clinically and euthanatized at 1, 4, 7, and 14 days postinfection and tissues were collected for virus isolation, histopathologic examination, in situ hybridization (ISH), and immunohistochemistry (IHC). ...

Comparison of clinico - pathological changes in SPF chickens infected with different Iranian genotypes of infectious bronchitis virus

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...

Comparison of Laboratory Parameters in the Serum of SPF Chickens Infected with Different Iranian Genotypes of Infectious Bronchitis Virus

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...