Kamel, K. M. <br/><br/>
The prevalence of Infectious Bronchitis (IB) outbreaks in some chicken farms:   ii Molecular characterization offield isolates of IB virus   [electronic resource]. 
 مدى إنتشار مرض الالتهاب الشعبي المعدي فى قطعان الدجاج:‪  2 التوصيف الجزيئي لفيروسات الالتهاب الشعبى المعدى المعزولة من إصابات الحقلية.‪ 

 - p.342-350. 
<br/><br/>Includes references. 
<br/><br/> Twenty five isolates of IBV were isolated from 36 broiler aird layer cbicken farms collected from 13 governorates during.2 years started from January 2003. All the examined farms were vaccinated using the commercial live IB-H1B vaccine in addition to the IB-inactivated vaccine in the layer farm. The viruses were isolated and identified previoDsly by chicken embryo, CEK cell culture inoculation. Isolates SUbjected to RT-PeR. Four isolates; three broiler farms and one from layer farm were genotyped using 81 partial gene sequencing. Typing of the four isolates using Sl partial gene sequencing, revealed that the isolated IBV strains showed homology to Asia, Europe, USA and Middle East strains. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Infectious bronchitis in poultry.<br/>Poultry--Virus diseases.<br/>Poultry--Vaccination.