pathogen [ˈpæθədʒən]

例句:

• They are simply vectors of the theist pathogen.
  来自SA
• The causative agent may be a primary or opportunistic pathogen.
  来自SA
• The opposite end latches onto the pathogen.
  相对的一端锁在病原体上.
  
• The pathogen was almost instantly detected by automated systems.
  病原体几乎立刻就被自动系统检测到了。
  
• It had become of major importance as a pathogen.
  它已成为极其重要的病原菌.
  
• The disease is caused by the fungus-like pathogen Phytophthora ramorum.
  来自BBC