Infectious Bronchitis is a viral disease that primarily affects chickens, causing inflammation of the bronchial tubes. It is caused by the Infectious Bronchitis Virus (IBV), which spreads easily among birds through respiratory droplets, contaminated equipment, and feed. Symptoms include coughing, sneezing, nasal discharge, and reduced egg production in hens. The disease can lead to severe respiratory issues and can be particularly harmful to young chicks. Vaccination is a common preventive measure, helping to protect flocks from the virus. Proper biosecurity practices are essential to minimize the risk of infection and maintain poultry health.