Legionella Resources

Reopening Buildings After Prolonged Shutdown or Reduced Operation – Ensure the safety of your occupants and building water systems and devices.

Toolkit for Controlling Legionella in Common Sources of Exposure – Find concise, actionable information on controlling Legionella in commonly implicated sources of Legionnaires’ disease outbreaks.

Developing a Water Management Program To Reduce Legionella Growth & Spread in Buildings: A Practical Guide To Implementing Industry Standards – Develop and implement a water management program to reduce a building’s risk for growing and spreading Legionella.

Water System Maintenance – Review information on monitoring building water and maintaining recreational water systems for preventing disease.

Legionella Environmental Assessment Form – Use this form to document a facility’s water systems, help determine whether to conduct Legionella environmental sampling, and, if so, develop a sampling plan.

Legionella Environmental Assessment Form Marking Guide – Use this instructional resource to complete the Legionella Environmental Assessment Form, as well as increase awareness of conditions that may promote Legionella growth and spread.

Procedures for Identifying Cooling Towers – Read a stepwise procedure and strategies to locate cooling towers.

Hot Tub Displays and Legionella Risk: Guidance for Environmental and Public Health Practitioners – Learn how to minimize risk for Legionella exposure from hot tub displays at temporary events (for example, fairs, home and garden shows, conventions).

Infographics

Legionnaires’ Disease: Use Water Management Programs in Buildings To Help Prevent Outbreaks

Legionnaires’ Disease: A Problem for Health Care Facilities

Environmental Investigation Videos – Watch instructional videos that explain Legionella ecology, environmental assessments, and sampling techniques.

Preventing Legionnaires’ Disease: A Training on Legionella Water Management Programs (PreventLD Training) – Learn to create a water management program to reduce risk for Legionnaires’ disease.

CDC Vital Signs Reports

Vital Signs: Health Care–Associated Legionnaires’ Disease Surveillance Data from 20 States and a Large Metropolitan Area — United States, 2015 – Learn about deficiencies in how water in buildings is managed and how comprehensive water management programs could help prevent Legionnaires’ disease and reduce outbreaks.

Vital Signs: Deficiencies in Environmental Control Identified in Outbreaks of Legionnaires’ Disease — North America, 2000–2014 – Learn the importance of effective water management programs in health-care settings.

Water Management Gaps and Legionnaires’ Disease Outbreaks – Read our plain language summary of findings from CDC-led Legionnaires’ disease outbreak investigations.

JEH Articles

Preventing Legionnaires’ Disease: Environmental Health Expertise Is Key pdf icon[PDF – 472 KB] – Explore the role of environmental health professionals in preventing and responding to Legionnaires’ disease.

Legionnaires’ Disease Outbreak at a Long-Term Care Facility in Ohio, 2013 pdf icon[PDF – 688 KB] – Learn about an outbreak investigation implicating a cooling tower that used an automated biocide delivery system.

Reducing Legionnaires’ Disease in Public Spas pdf icon[PDF – 117 KB] – Discover how CDC’s Model Aquatic Health Code offers critical guidance for reducing the risk of Legionnaires’ disease in public aquatic facilities.

A Large Community Outbreak of Legionnaires’ Disease Associated With a Cooling Tower in New York City, 2015external icon – Read this report about an outbreak in an NYC cooling tower in 2015.

History, Mystery, and Discovery: 40 Years of Legionnaires’ Disease – View this CDC webinar to hear scientists discuss experiences from early investigations, how they solved the 2015 outbreak of Legionnaires’ disease in New York City, and more.