Source: Centers for Disease Control and Prevention — Content from the Centers for Disease Control and Prevention (public domain).
Legionnaires’ disease Investigations
Multiple disciplines of public health need to be involved in Legionnaires’ disease investigations.
Apr. 17, 2024
Investigating travel-associated Legionnaires’ disease outbreaks includes special considerations.
Investigating Healthcare-associated Cases and Outbreaks
Consider healthcare exposures when identifying potential outbreak sources.
Community-associated Outbreaks
Investigating community-associated Legionnaires’ disease outbreaks includes special considerations.
Environmental Health
Explore our resources for the environmental part of Legionnaires’ disease outbreak investigations.
Apr. 17, 2024
Featured
View all of CDC’s resources on investigating Legionnaires’ disease cases and outbreaks.
Apr. 17, 2024
CDC has published several resources to support Legionnaires’ disease investigations.
Apr. 17, 2024
Guidance by topic
* [Data Methodology](</investigate-legionella/php/data-research/index.html>)
Legionellosis, which includes Legionnaires’ disease, is a nationally notifiable disease.
* [Outbreak Investigations](</investigate-legionella/php/public-health-strategy/investigations.html>)
Legionnaires’ disease outbreak investigations require careful planning and periodic reassessments.
* [Environmental Sampling](</investigate-legionella/php/public-health-strategy/environmental-sampling.html>)
Learn more about environmental sampling for Legionella.
* [_Legionella_ Testing and Specimen Collection](</investigate-legionella/php/public-health-strategy/legionella-testing.html>)
Testing environmental and clinical samples for Legionella can help confirm an outbreak’s source.
* [Communication Plans](</investigate-legionella/php/public-health-strategy/communication-resources.html>)
There are special communication considerations during Legionnaires’ disease outbreaks.



