Legionellosis - HAN
Legionellosis can present as two types of illness: Legionnaires’ (LEE-juh-nares) disease and Pontiac fever. The two illnesses can be diagnosed with similar tests, but are treated differently.
Legionnaires’ disease is a serious type of pneumonia (lung infection) frequently requiring hospitalization, whereas Pontiac fever is a less serious illness that is self-limiting and does not require treatment. People can get sick with Legionnaire's disease or Pontiac fever when they breathe in mist or accidently swallow water into the lungs containing Legionella (LEE-juh-nell-a) bacteria.
Legionnaire's Disease And Water Management Resources
CDC one pagers
Effective water management programs can reduce the risk of Legionnaire’s disease
One healthcare facility’s Legionnaire’s disease story and what happens next
CDC Vital signs
Fact sheet on using water management programs in building to help prevent outbreaks, June 2016
MMWR Vital Signs: Deficiencies in Environmental Control Identified in Outbreaks of Legionnaire’s Disease – North America, 2000-2014, June 2016
Fact sheet on Legionnaire’s disease and healthcare facilities, June 2017
MMWR: Vital Signs: Health Care-Associated Legionnaire’s Disease Surveillance Data from 20 States and a Large Metropolitan Area —United States, 2015, June 2017
CDC toolkit: Developing a Water Management Program to Reduce Legionella Growth and Spread in Buildings
CDC Legionella page
CDC "Sampling/Enviornmental Assessment Videos" site
Occupational Safety and Health Administration (OSHA) guidelines
Cooling Technology Institute: Legionellois Guideline: Best Practices for the Control of Legionella
American Water Works Association: Water Stagnation in Buildings
Preventing Legionnaires' Disease (PreventLD Training)
Are You Involved in Water Safety for Buildings?
Take this training from CDC and partners on creating a water management program to reduce risk for Legionnaires’ disease. PreventLD Training aligns with industry standards (ASHRAE 188) on managing risk for Legionella bacteria.
The training includes templates and other resources.Register Today!
The training addresses the 7 steps of a Legionella water management program. These 7 steps, outlined in CDC’s Water Management Program toolkit, operationalize the ASHRAE 188 standard for minimizing the risk of Legionnaires’ disease
Module A: Getting Started – Introduction to Legionella
Step 1: Create a Water Management Program Team
Module B: Hazard Analysis
Step 2: Describe the Building Water Systems Using Text and Flow Diagrams
Step 3: Identify Areas Where Legionella Could Grow and Spread
Module C: Hazard Control
Step 4: Decide Where Control Measures Should Be Applied and How To Monitor Them
Step 5: Establish Ways To Intervene When Control Limits Are Not Met
Module D: Confirmation
Step 6: Make Sure the Program Is Running as Designed and Is Effective (Verification and Validation)
Step 7: Document and Communicate All the Activities of Your Water Management Program
The training also includes case studies in a healthcare facility and manufacturing facility as well as resources for creating water management program action plans.
For Clinical Questions or to Report Suspect Cases, Contact:
The CDPH Disease Reporting Hotline at 312-743-9000
*After hours, weekends, and holidays, call 311 and ask for the communicable disease physician on-call (or 312-744-5000 if outside the City of Chicago).
Consideration for Storage and Shipment Instructions: Legionella Testing At Public Health Laboratories Click Here
Latest AlertsView All
Increase in Legionella Laboratory Reports from Chicago Residents Since July 1, 2021View Alert
Increase in Community-Associated Legionnaires’ Disease Cases: Update and Request for Sputum CultureView Alert
During normal business hours, Monday through Friday (excluding holidays)
CDPH disease reporting line: 312-743-9000 or call 311 after business hours and ask for the communicable disease physician on-call.