Zellen G K, Weber L J, Martin S W
Can Vet J. 1984 Feb;25(2):75-7.
The method(s) of spread of infectious laryngotracheitis in poultry flocks is uncertain. Based on an outbreak of the disease in the Niagara Peninsula in the summer of 1982, managers of infected (case) flocks and noninfected (control) flocks were interviewed to compare their management practices. The data were statistically analyzed; however, the results are not conclusive since only thirteen farms were involved in the outbreak. The results do suggest the following: farms with previous infectious laryngotracheitis infected flocks are more likely to have future outbreaks than are infectious laryngotracheitis-free farms, sanitation procedures of people entering the barns (changing boots and coveralls) appears to be related to infection status and air inlet location on the barn may be associated with infection. These items should be examined more thoroughly in future outbreaks.
家禽群中传染性喉气管炎的传播方式尚不确定。基于1982年夏季尼亚加拉半岛的一场疫情，对受感染（病例）禽群和未受感染（对照）禽群的管理人员进行了访谈，以比较他们的管理做法。对数据进行了统计分析；然而，结果并不具有决定性，因为此次疫情仅涉及13个农场。结果确实表明以下几点：之前有传染性喉气管炎感染禽群的农场比没有传染性喉气管炎的农场未来更有可能爆发疫情，进入禽舍的人员的卫生程序（更换靴子和工作服）似乎与感染状况有关，禽舍的进气口位置可能与感染有关。在未来的疫情中应更彻底地检查这些项目。
