“病原体”的英语可以翻译为：[医] causative agent，pathogen ...

病原体几乎立刻就被自动系统检测到了。The pathogen was almost instantly detected by automated systems.相对的一端锁在病原体上.The opposite end latches onto the pathogen.已经发现至少有一种禽病的病原体.At least one avian disease pathogen has been found....