GD (Animal Health Service), P.O.B. 9, 7400 AA, Deventer, The Netherlands.
Avian Pathol. 2011 Jun;40(3):223-35. doi: 10.1080/03079457.2011.566260.
The history, current situation and control measures for infectious bronchitis virus (IBV) variants are reviewed. A large number of IBV variants exist worldwide; some being unique to a particular area, others having a more general distribution. The possible reasons why some strains spread readily over major parts of the world, whereas other strains stay more localized are discussed. The advantages and disadvantages of strain classification by protectotyping, serotyping and genotyping are discussed in relation to in vivo protection. The different vaccination strategies are also considered.
本文回顾了传染性支气管炎病毒(IBV)变异株的历史、现状和控制措施。目前,世界范围内存在大量的 IBV 变异株;有些变异株仅存在于特定地区,有些则具有更广泛的分布。文中讨论了为什么某些毒株在世界大部分地区迅速传播,而其他毒株则更局限于特定地区的可能原因。文中还讨论了在体内保护方面,根据保护定型、血清定型和基因分型对毒株进行分类的优缺点。同时,还考虑了不同的免疫策略。