Ali, A.M., Samy, M.M., Fasina, F.O., Hassan, M.K., Kilany, W.H., El-Mahdy, S., Saad, A., Lubroth, J. and Jobre, Y. 2019. Field evaluation of common poultry viral vaccinesin Egypt: a need for reassessmentof the vaccine value chain. Veterinaria Italiana. 55, 3 (Oct. 2019), 231–239. DOI:https://doi.org/10.12834/VetIt.999.5287.1.