Vosloo W, Knowles N J, Thomson G R
Foot-and-Mouth Disease Laboratory, Onderstepoort, South Africa.
Epidemiol Infect. 1992 Dec;109(3):547-58. doi: 10.1017/s0950268800050536.
Sequencing of part of the 1D gene of foot-and-mouth disease virus was used to determine the relationships between SAT-2 viruses isolated from outbreaks which occurred in cattle in Zimbabwe and Namibia and in impala in South Africa between 1979 and 1989. The results demonstrated that the outbreaks in different countries were unrelated. Surprisingly close relationships were shown between all SAT-2 viruses isolated from cattle in Zimbabwe since 1983 but the two major epizootics which occurred in 1989 were caused by viruses which were clearly different. Conversely, two apparently unrelated outbreaks in impala in South Africa were caused by viruses which could not be distinguished.
对1979年至1989年间在津巴布韦和纳米比亚牛群以及南非黑斑羚中发生疫情时分离出的口蹄疫病毒1D基因部分进行测序,以确定这些SAT - 2病毒之间的关系。结果表明,不同国家的疫情并无关联。令人惊讶的是,自1983年以来从津巴布韦牛群中分离出的所有SAT - 2病毒之间关系密切,但1989年发生的两次主要 epizootics是由明显不同的病毒引起的。相反,南非黑斑羚中两次明显无关的疫情是由无法区分的病毒引起的。