Investigation of Cross Neutralization of Egyptian Variant 2 among both Classic and Variant Vaccinal Infectious Bronchitis Viruses
作者: Ekram S. Mahmoud
刊名: Zagazig Veterinary journal, 2017(4)
来源数据库: Pak Publishing Group
DOI: 10.5281/zenodo.1162904
关键词: Infectious BronchitisClassicEgyptian Variant 2Cross Neutralization
原始语种摘要: Infectious Bronchitis Virus (IBV) is considered an important virus which may cause major losses in the poultry industry. One of the most important and effective tool that control the infection spread is the vaccination strategy. The present study was undertaken to determine the antigenic relationship between the currently used IBVs, classic and variant vaccinal strains, and the dominating Egyptian variant-2, IBV which could be relatively reflecting the quality of such vaccine. The recommended doses of the monovalent live IBV vaccines of Ma5, H120, 4/91 & CR88, and bivalent vaccine of H120-D274 were administrated via the eye-drop route in groups of 2-week-old SPF-chickens. Three weeks after vaccination, immunized and control chickens were bled, and serum samples were collected. Sera were...
全文获取路径: Pak Publishing Group 

  • Egyptian 埃及的
  • vaccinal 牛痘的
  • antigenic 抗原的
  • vaccination 注射疫苗
  • vaccines 疫苗
  • vaccinated 接种疫苗的
  • neutralizing 中和
  • bivalent 二价的
  • monovalent 一价的
  • variant 变体