But in fact this virus crossed over into humans many decades before, from chimpanzees, where the virus originated, into humans who hunt these apes.
但是事实上，这个病毒在几十年前就已经从黑猩猩身上交叉感染到了人类身上， 病毒在黑猩猩身上首次发现，然后传染到捕猎这些猿类的人类身上。