Investigation of Legionnaires' disease: cases, clusters and outbreaks

Guidance for health protection teams on the investigation of cases, clusters and outbreaks of Legionnaires’ disease.


Guidance on investigating cases, clusters and outbreaks of Legionnaires’ disease

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The guidance brings together information on Legionnaires’ disease from Public Health England and other organisations to:

  • set out roles and responsibilities for public health investigation and enforcement
  • highlight specific considerations for investigation of potential sources of infection in healthcare, travel and community settings, both for single cases and clusters/outbreaks
  • provide a framework for a standardised approach to an investigation which can be adapted to the individual scenarios in public health

Supplementary material and background information is provided in appendices to this document.

Published 28 December 2016
Last updated 2 January 2019 + show all updates
  1. Updated guidance document.
  2. Updated 'Guidance on investigating cases, clusters and outbreaks of Legionnaires’ disease' document.
  3. First published.