leukovirus

例句：

1. 1. Theleukovirus is responsible for thedevelopment of leukemia in humans.
   白细胞病毒是人类白血病发展的罪魁祸首。
2. 2.Researchers are studying the leukovirus to develop a vaccine against it.
   研究人员正在研究这种白细胞病毒，以开发针对它的疫苗。
3. 3. Theleukovirus hasbeen found to be highly contagious and can cause severe illnessin humans.
   这种白细胞病毒被发现具有高度传染性，并能在人类中引起严重的疾病。