The medicine did not avail against the disease. 这种药对这种病没有产生疗效。
Legio aires' disease is caused by infection with Legionella bacteria which are found naturally in the environment and thrive in warm water and warm damp places. 军团病是由军团杆菌引起，这种细菌产生在自然环境中，在温水里及潮热的地方蔓延。
