Rickettsia-like organism infections can lead to severe diseases and sometimes large death, which has become a restrictive factor in the development of marine mollusk industry in the world.

• 摘要类立克次体的感染可以引起海洋贝类病害的发生，并且有时会导致贝类的大规模死亡，成为在世界范围内影响海洋贝类养殖业发展的重要制约因素。