The data obtained suggested that co-culture is an effective method for isolating latentvirus.
实验结果提示：共同培养法是一种有效的分离潜伏期病毒的方法。
2
The principal apple cultivars in northwest China usually carry with apple latentvirus. The percentage of carrying plants reached as high as 80-100%.
西北地区的苹果主要栽培品种都普遍带有苹果潜隐病毒，其带毒株率高达80—100%。
3
Using HPCs from umbilical cords and commercial LABS, the researchers demonstrated in test-tube experiments that the virus not only infected the cells but also could remain latent.