At a glance
Explore CDC's resources for investigating individual cases and outbreaks of Legionnaires' disease.

Environmental resources
Explore our resources for the environmental part of Legionnaires’ disease outbreak investigations.
Fact sheets
Fact sheet on Legionnaires' disease, including symptoms, risk groups, diagnosis, and treatment.
What Clinicians Need to Know about Legionnaires’ Disease
Line list templates
This line list includes variables that could be associated with community exposure.
This line list includes variables that could be associated with healthcare settings.
Patient interview tools
Collect epidemiologic data about possible cruise ship exposures with this template.
Customize this form to collect clinical and epidemiologic data about suspected cases.