cross-species infection

• 跨物种感染

cross-species infection的用法和样例：

例句

1. Although natural hosts are birds, the avian influenza viruses are known to cross species barriers to infect other mammals, including humans.
   尽管鸟类是自然宿主，但禽流感病毒能够跨物种感染其它哺乳动物包括人类。
2. This finding marks the first documented infection of this species with an avian influenza virus.
   这一发现标志着首次记载了这一物种感染了一种禽流感病毒。