Legionella and Legionnaires’ Disease

CDC investigations found that 9 in 10 outbreaks of Legionnaires’ disease were caused by problems preventable with more effective management of water systems.
CDC helps build capacity in health departments for Legionnaires’ disease response and prevention. Explore our Legionnaires’ disease resources for environmental health professionals.
More CDC and Partner Resources
Explore more Legionella resources for environmental health professionals.
Turning the Tide: The Role of Water Management to Prevent Legionnaires’ Disease (CDC Public Health Grand Rounds)
Legionella (Legionnaires’ Disease and Pontiac Fever) (CDC’s comprehensive website)
Infographics
Page last reviewed: March 18, 2022