Verhoeff J, van Nieuwstadt A P
Vet Rec. 1984 Mar 24;114(12):288-93. doi: 10.1136/vr.114.12.288.
The role of bovine respiratory syncytial virus, parainfluenza type 3 virus and bovine herpesvirus 1 as disease agents in 28 groups of young cattle on 19 dairy farms which raised their own replacements was investigated. Bovine respiratory syncytial virus infections occurred in 27, parainfluenza type 3 virus infections in all and bovine herpesvirus 1 infections in three of the 28 groups. Some infections were accompanied by clinical signs while others were entirely subclinical. Clinical respiratory disease was observed on 25 occasions in 20 of the groups. Respiratory disease was associated with a bovine respiratory syncytial virus infection on 15 occasions with parainfluenza type 3 virus infection in four cases and with bovine herpesvirus 1 infection in two cases. In four cases there was no association between the respiratory disease and any of the four virus infections. Bovine respiratory syncytial virus infections caused more serious respiratory problems than parainfluenza type 3 virus infections.
对19个自行培育后备牛群的奶牛场中28组犊牛，研究了牛呼吸道合胞病毒、3型副流感病毒和牛疱疹病毒1型作为致病原的作用。28组中有27组发生牛呼吸道合胞病毒感染，全部发生3型副流感病毒感染，3组发生牛疱疹病毒1型感染。一些感染伴有临床症状，而另一些则完全是亚临床的。20个组中有25次观察到临床呼吸道疾病。呼吸道疾病与牛呼吸道合胞病毒感染相关15次，与3型副流感病毒感染相关4次，与牛疱疹病毒1型感染相关2次。有4次呼吸道疾病与这四种病毒感染中的任何一种均无关联。牛呼吸道合胞病毒感染比3型副流感病毒感染引起更严重的呼吸道问题。
