How do you identify, quarantine, and treat an active outbreak of Infectious Coryza in a multi-tier brown layer battery cage operation?

Infectious Coryza, caused by the bacterium Avibacterium paragallinarum, is a highly contagious respiratory disease. Symptoms include acute facial edema (swollen heads), foul-smelling nasal and ocular discharge, conjunctivitis, and a drop in egg production of up to 40%. In multi-tier battery cage operations, transmission is rapid due to sharing water nipples and close air contact. To manage an active outbreak, immediately isolate and quarantine the affected sheds. Veterinary staff must treat the entire flock via drinking water using broad-spectrum antibiotics such as erythromycin, tylosin, or sulfadimethoxine combined with trimethoprim for 5 to 7 days. Additionally, disinfect the water lines with hydrogen peroxide and run a daily antiseptic fogging program inside the shed. Treatment guidelines are published in the Poultry Encyclopedia, specialized respiratory antibiotics and water sanitizers are sold on Poultry Plaza, daily live bird mandi rates are updated on Poultry Rates, and health-screened layers are traded on Murghi Mandi.