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Infectious Bronchitis in Chickens
Introduction and History Infectious bronchitis (IB) is a highly contagious viral disease in chickens. It affects the respiratory, renal, and reproductive systems. Farmers first noticed infectious bronchitis in chickens in the 1930s. Experts in North Dakota, USA, described it in 1931. Schalk and Hawn saw young chicks gasping and acting weak. By 1933, scientists named it…



