Serologic and cross-protection studies with several infectious bronchitis virus isolates from Delmarva-reared broiler chickens.

@article{Gelb1981SerologicAC,
  title={Serologic and cross-protection studies with several infectious bronchitis virus isolates from Delmarva-reared broiler chickens.},
  author={Jack Gelb and B E Perkins and Jack Rosenberger and Paul V. Allen},
  journal={Avian diseases},
  year={1981},
  volume={25 3},
  pages={655-66}
}
Five isolates, from broiler-type chickens, capable of causing acute respiratory disease were identified as infectious bronchitis virus (IBV). The agar-gel precipitin (AGP) test was effective in identifying the isolates as IBV. Virus-neutralization (VN) and cross-challenge tests indicated two of the isolates to be Massachusetts types and one to be a JMK type. The remaining isolates were different from strains normally encountered in chickens reared on the Delmarva Peninsula. One isolate… CONTINUE READING

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