Buonavoglia C, Di Trani L, Buonavoglia D, Tempesta M, Marsilio F
Istituto di Patologia delle Malattie Infettive e Parassitarie degli Animali Domestici, Facoltà di Medicina Veterinaria, Bari.
Microbiologica. 1991 Jul;14(3):253-6.
The authors report the results of characterization studies of three strains of Newcastle disease virus (NDV) (two isolated from pigeons and one from chickens). The plaque cloning of the viruses, showed that each NDV strain consists of different clones of genetically mixed viral populations. The pigeon NDV isolates were classified as lentogenic using mean death time (MDT) determination; while the intracerebral pathogenicity index (ICPI) was the same as the velogenic NDV strain.
作者报告了三株新城疫病毒（NDV）（两株从鸽子中分离，一株从鸡中分离）的特性研究结果。病毒的蚀斑克隆显示，每株NDV由基因混合病毒群体的不同克隆组成。使用平均死亡时间（MDT）测定，将鸽子源NDV分离株分类为缓发型；而脑内致病性指数（ICPI）与速发型NDV株相同。
