In uncovered birds the virus enters by means of the alimentary tract (and, in some instances, because of the conjunctiva and nasal passages) and primary replication happens from the nasopharynx and intestine. Necrotic lesions/atrophy can also be located in other lymphoid tissues like the thymus, Harderian gland, cecal tonsils and https://brianm913hib1.blogdiloz.com/profile