Protection of Layers and Breeders against Homologous or Heterologous HPAIv by Vaccines from Korean National Antigen Bank

Researchers evaluated the efficacy of the clade 2.3.2.1c and 2.3.4.4c H5Nx vaccines from the Korean avian influenza national antigen bank for emergency preparedness for their potency and protective efficacy against lethal homologous and heterologous viruses in layer and breeder chickens practically.