Belkasmi, S.; Fellahi, S.; Umar, S.; Delpont, M.; Delverdier, M.; Lucas, M.; Bleuart, C.; Kichou, F.; Nassik, S.; Guerin, J.; Fihri, O.; Ducatez, M.; El Houadfi, M.
Efficacy of massachusetts and 793B vaccines against infectious bronchitis Moroccan-Italy 02 virus in specific-pathogen-free chickens and commercial broilers