As used in this guideline, unless the context otherwise requires, these words and terms shall be defined as follows:
Summary of abbreviations and acronyms used in this document:
- CDC — Centers for Disease Control and Prevention
- cfu/ml — colony forming unit per milliliter
- DIIS — Disease Investigation and Intervention Specialist
- EH — Environmental Health
- EHD — Environmental Health Division
- EHS — Environmental Health Specialist
- NAC — Nevada Administrative Code
- NRS — Nevada Revised Statutes
- OOE — Office of Epidemiology
- PAPR — Powered Air-Purifying Respirator
- PPE — Personal Protective Equipment
- “Case” defined. A case is a person having legionellosis (Legionnaires’ disease or Pontiac fever).
- “Case classification” defined. Case classification is the method by which cases are categorized for the purposes of improving the specificity of reporting between public health agencies.
- “Environmental Assessment” defined. An environmental assessment is a detailed component of an overall environmental investigation to determine the source of potential Legionella reservoirs causing exposure within a facility. The results of the environmental assessment may be documented on a form provided by the CDC.
- “Exposure” defined. Exposure means contact with a biological, chemical, radiological or other agent or situation that can affect health. For the purpose of this guideline, the agent of concern is Legionella, a biological agent present in water and transmitted through the inhalation of aerosolized water droplets or direct aspiration of water.
- “Fixture” defined. A fixture is a device connected to the hot or cold water supply system or both and which is connected to the wastewater collection system and/or its disposal. This includes, but is not limited to a bathtub (with or without overhead shower), a shower stall, a bidet, a commode (toilet or water closet), a sink (kitchen sink or lavatory) or a dishwasher. Each device listed is considered a separate fixture. A bathtub/shower combination served by the same stack will be considered one fixture, to be sampled at the showerhead.
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Updated on: July 23, 2021