cross-species infection的用法和樣例：
例句
- Although natural hosts are birds, the avian influenza viruses are known to cross species barriers to infect other mammals, including humans.
儘管鳥類是自然宿主，但禽流感病毒能夠跨物種感染其它哺乳動物包括人類。 - This finding marks the first documented infection of this species with an avian influenza virus.
這一發現標誌著首次記載了這一物種感染了一種禽流感病毒。
