Influence of maternal immunity on vaccine efficacy and susceptibility of one day old chicks against Egyptian highly pathogenic avian influenza H5N1.

@article{Abdelwhab2012InfluenceOM,
  title={Influence of maternal immunity on vaccine efficacy and susceptibility of one day old chicks against Egyptian highly pathogenic avian influenza H5N1.},
  author={E. M. Abdelwhab and Christian Grund and Mona Meherez Aly and Martin Beer and Timm C Harder and Hafez Mohamed Hafez},
  journal={Veterinary microbiology},
  year={2012},
  volume={155 1},
  pages={13-20}
}
In Egypt, continuous circulation of highly pathogenic avian influenza (HPAI) H5N1 viruses of clade 2.2.1 in vaccinated commercial poultry challenges strenuous control efforts. Here, vaccine-derived maternal AIV H5 specific immunity in one-day old chicks was investigated as a factor of vaccine failure in long-term blanket vaccination campaigns in broiler chickens. H5 seropositive one-day old chicks were derived from breeders repeatedly immunized with a commercial inactivated vaccine based on the… CONTINUE READING

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