mild mosaic virus of potato

例句：

1. 1. This strain of virus is particularly mild and can cause only minor symptoms in humans.
   这种病毒株特别温和，仅能引起人类轻微的症状。
2. 2.The mild mosaic virus is responsible for the characteristic green spots on potatoes.
   马铃薯轻度花叶病毒导致土豆上出现特有的绿色斑点。
3. 3.Researchers are studying the genetic makeup of this mild mosaic virus to develop more effective vaccines.
   研究人员正在研究这种轻度花叶病毒的遗传构成，以开发更有效的疫苗。