Tracheal lesions in a IBV case

Avian infectious bronchitis virus have tropism for different tissues, such as respiratory, renal or reproductive. In the respiratory form of IBV, depressed birds are observed, with respiratory sounds and nasal discharge. At the necropsy, petechiae and inflammation in trachea and larynx are observed, as can be observed in the image. It is advisable to observe kidneys and oviducts in order to differentiate with laryngotracheitis or influenza virus and get a definitive laboratory diagnosis by performing analysis.