Gough A W, Pettit J R, Gagnon A, Weber L J
Can J Comp Med. 1977 Apr;41(2):146-51.
An outbreak of infectious laryngotracheitis was observed in Ontario commercial poultry flocks from September 1974 to June 1975. Fifty-five flocks, totalling over 848,770 birds were clinically affected by this disease in the southern region of the province. Sixty-nine percent (38/55) of the exposed flocks were in Wentworth country and the regional municipality of Niagara. Hemorrhagic tracheitis with histological evidence of intranuclear inclusion bodies in syncytia of tracheal epithelial cells were the salient pathological findings.
1974年9月至1975年6月期间，在安大略省的商业家禽群中观察到传染性喉气管炎的爆发。该省南部地区有55个家禽群，总计超过848,770只家禽受到这种疾病的临床影响。69%（38/55）的受感染家禽群位于温特沃斯县和尼亚加拉地区自治市。出血性气管炎以及气管上皮细胞合胞体中存在核内包涵体的组织学证据是主要的病理学发现。
