Odelola H A, Koza J
Acta Virol. 1975 Nov;19(6):489-92.
Seven strains of West nile virus isolated in Nigeria were investigated for their ability to form plaques in monkey kidney cell monolayers. Five strains antigenically related to one another produced plaques of about the same size 3 to 4 days after the addition of the overlay medium. The two other strains closely related to each other produced no plaques. Their inability to produce plaques was regarded as a significant characteristic of the intratypic group to which the two strains belong.
对在尼日利亚分离出的7株西尼罗河病毒在猴肾细胞单层中形成蚀斑的能力进行了研究。彼此抗原相关的5株病毒在添加覆盖培养基后3至4天产生大小大致相同的蚀斑。另外两株彼此密切相关的病毒未产生蚀斑。它们无法产生蚀斑被视为这两株病毒所属亚型组的一个显著特征。