Protective efficacy of concomitant day-old vaccination with live-attenuated infectious bronchitis virus (IBV) vaccines (1/96 and H120 + PHY.LMV.42) against a Thai QX-like IBV challenge in commercial broilers
This study evaluated the protective efficacy of concomitant day-old administration of two live-attenuated IBV vaccines (1/96 and H120 + PHY.LMV.42) against challenge with a Thai QX-like IBV strain in commercial broiler chickens.