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eTools Home :Legionnaires' Disease Safety and Health Topic Page | Scope | FAQ | PDF | Credits
Legionnaires' Disease
This eTool is designed to assist industrial hygienists in the assessment of worksites for potential Legionnaires' disease. It provides information on disease recognition, investigation procedures to identify probable water sources, and control strategies. The majority of legionellosis is caused by Legionella pneumophila, and so this eTool will deal exclusively with that organism. Diseases in which other species of Legionella are involved should be dealt with in a similar manner.

Section I. What is Legionnaires' disease? - Learn about disease symptoms, transmission, diagnosis, and treatment Legionnaires' Disease
Section II. What water systems in workplaces are potential sources of Legionnaires' disease? - Source identification and control procedures - Water sampling guidelines
Water sampling guidelines
Section III. How to determine if a workplace is experiencing an outbreak - Investigation protocols
Section IV. What actions are required when an outbreak of Legionnaires' disease has been confirmed? - Outbreak response


Workers' Rights

Workers have the right to:

  • Working conditions that do not pose a risk of serious harm.
  • Receive information and training (in a language and vocabulary the worker understands) about workplace hazards, methods to prevent them, and the OSHA standards that apply to their workplace.
  • Review records of work-related injuries and illnesses.
  • File a complaint asking OSHA to inspect their workplace if they believe there is a serious hazard or that their employer is not following OSHA's rules. OSHA will keep all identities confidential.
  • Exercise their rights under the law without retaliation, including reporting an injury or raising health and safety concerns with their employer or OSHA. If a worker has been retaliated against for using their rights, they must file a complaint with OSHA as soon as possible, but no later than 30 days.

For additional information, see OSHA's Workers page.

How to Contact OSHA

Under the Occupational Safety and Health Act of 1970, employers are responsible for providing safe and healthful workplaces for their employees. OSHA's role is to ensure these conditions for America's working men and women by setting and enforcing standards, and providing training, education and assistance. For more information, visit www.osha.gov or call OSHA at 1-800-321-OSHA (6742), TTY 1-877-889-5627.



This eTool is a chapter of the OSHA Technical Manual developed to assist OSHA staff in evaluating workplace hazards. eTools are "stand-alone," interactive, Web-based training tools on occupational safety and health topics. As indicated in the disclaimer, this eTool is not an OSHA standard or regulation, and it creates no legal obligations. Likewise, the eTool does not eliminate or limit any obligations that may be created by the OSH Act or by OSHA standards or regulations.
eTools Home :Legionnaires' Disease Safety and Health Topic Page | Scope | FAQ | PDF | Credits