1. Shanghai Veterinary Research Institute (SHVRI), Chinese Academy of Agricultural Sciences (CAAS), Shanghai, China
2. Faculty of Veterinary and Animal Sciences, PMAS Arid Agriculture University, Rawalpindi, Pakistan
3. Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
4. Avian Innate Immunity and Host Genetic Diversity, Avian Viral Diseases Programme, The Pirbright Institute, Surrey, GU24 0NF, United Kingdom