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- What is Legionella?
What is Legionella? What are monitoring & - - PDF document
What is Legionella? What are monitoring & - - PDF document
What is Legionella? What are monitoring & control recommendations? What are you required to monitor/control? What are you required to monitor/control? What are the risks? How can
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- Gram negative, waterborne pathogen.
Family encompasses more than 40 different organisms, only a few of which endanger health. Contracted by inhalation of aerosols or aspiration of water. Immunocompromised and respiratory compromised individuals are at greatest risk. individuals are at greatest risk. An estimated 8,000 - 18,000 cases of legionellosis occur each year in the U.S; 23% are nosocomial. Most LD cases are sporadic; 10% - 20% can be linked to outbreaks. Death occurs in 5% - 15% of LD cases; a substantially higher proportion of fatal cases occur during nosocomial outbreaks.
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#+ ( <+- Culture hot water tanks & distal sites. Legionella found? Prior cases of nosocomial legionellosis observed?
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<+--$ Colonization of distal sites > 30% Prospective surveillance for nosocomial LD detected? Consider Disinfection Continue environmental surveillance
NO YES NO YES
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Elements of Standard 188 (SPC-188):
Requirement for Hazard Analysis (HACCP) Documentation of water systems, operation and maintenance as it relates to reducing/controlling Legionella Legionella Verification that the controls are “in range” Validation that the hazard (Legionella) is under control = culturing is the only way to accurately validate effectiveness of the program
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Risks OF NOT monitoring & controlling
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- Dr. Janet Stout – Special Pathogens Lab
- Mr. Joseph Hannigan – Klenzoid Inc.