For Health Departments

CDC developed the following resources to assist state and local health department personnel in investigating individual cases and outbreaks of Legionnaires’ disease. State and local health departments have jurisdiction over investigations in their state.

Laboratory Investigation Resources

CDC developed tools to assist in the laboratory component of Legionnaires’ disease outbreak investigations.

Guidance for Reopening Buildings After Prolonged Shutdown or Reduced Operation

Many businesses are closed during the COVID-19 outbreak. Stagnant, or standing, water can cause conditions that increase risk for Legionella and other biofilm-associated bacteria. Learn about steps to take before re-opening your business and building.