Singh K V, Saad N, el-Zein A
Appl Microbiol. 1970 Oct;20(4):638-40. doi: 10.1128/am.20.4.638-640.1970.
A plaque technique was found useful for the differentiation and titration of two vaccine strains and a local highly virulent field isolate of Newcastle disease virus.
一种蚀斑技术被发现可用于新城疫病毒的两种疫苗株以及一种当地高毒力野毒株的鉴别和滴定。