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Preparation and application of polyvalent oil adjuvant inactivated vaccines into Infectious Bronchitis(IB)

CHENG Xiang chao,ZHANG Chun jie,WU Ting cai et al. (Luoyang Agricultural College,Luoyang 471003,China)  
Polyvalent oil adjuvant inactivated vaccines against Infectious Bronchitis(IB) were prepared successfully with two isolated strains of nephropathogenic IB virus and standard strain.The vaccines were detected under experimental and field conditions.The results showed that they were safe and effective,the immunity protective rate was 90%.So,the vaccines can prevent and control effectively traditional and nephropathogenic Infectious Bronchitis.
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