Pavlov N
Vet Med Nauki. 1976;13(7):42-7.
In addition to diphtheroid rhinitis, and tracheitis, the infectious rhinotracheitis in calves has also been accompanied by a catarrhal-and-necrotic pneumonia. The mucous membrane of the bronchi, bronchioles, and alveoli in such cases is edematous with occasional necrotic areas. The necroses are focal and areactive. The peribronchial lymphoreticular system shows no signs of proliferation. The necrotic lesions in the bronchi and alveoli are considered as the porte d'entrée of the bacterial infection that aggravates the course of the disease and fairly often leads to death.
除了类白喉性鼻炎和气管炎外，犊牛传染性鼻气管炎还伴有卡他性和坏死性肺炎。在这种情况下，支气管、细支气管和肺泡的黏膜水肿，偶见坏死区域。坏死灶呈局灶性且无反应性。支气管周围淋巴网状系统无增生迹象。支气管和肺泡中的坏死性病变被认为是细菌感染的入口，会加重疾病进程，且相当常见地导致死亡。
