Genetic variations of N protein gene of infectious bronchitis viruses strains isolated in China between 2005 and 2006;

Cloning and sequence analysis of S1 gene of Australian T strain of infectious bronchitis virus;

Expression and distribution of S1 protein of infectious bronchitis virus in Vero cells;

Advance in N Protein of IBV;

Study on the selection and prevention cure effects of the Chinese medicinal herbs against IBV;

One pair of primers for amplifying the S1 gene of avian Infectious bronchitis virus(IBV)were designed,with which the predicted 1.

Reverse transcription-polymerase chain reaction(RT-PCR)was used to amplify the Small Envelope(E)gene of avian Infectious bronchitis virus(IBV)LX4 strain and the gene was cloned into the pMD18-T vector.

Five field strains of infectious bronchitis virus(IBV) were isolated from the affected broilers in Chongqing City、Sichuan and Guangdong Provinces by inoculation into allantoic cavity of 10-day SPF embryos.

S1 spike protein is one of the important functional proteins of infectious bronchitis virus(IBV).

The conserved region of avian infectious bronchitis virus(IBV) polymerase gene was labelled with digoxigenin as a DNA probe.

Avian infectious bronchitis virus,a kind of ssRNA positive-strand virus which belongs to Coronaviridae without any DNA stage,is one of the most severe pathogenic agent causing acute,highly contagious respiratory and urogenital disease characterized by high mortality rate in affected avian flocks,resulting in gigantic economic loss every year.

Avian infectious bronchitis(IB) is an acute and highly contagious disease caused by avian infectious bronchitis virus(IBV).

This study established an identification procedure for the avian infectious bronchitis virus, MabELISA, with two strains of IBV monoclonal antibody made by an institution in China.