The British researcher fought the disease in Africa in the nineteen fifties and sixties.

这位英国研究人员在上世纪五六十年代在非洲致力于消除牛瘟病。

As if humans didn't have enough viruses to worry about, one British researcher has successfully infected himself with a computer virus.

就好象让人类忧心的病毒还不够多似的，一位英国研究人员已经成功让自己感染上了电脑病毒。