Controlling Legionella in Hospital Drinking Water: An Evidence-Based Review of Disinfection Methods
YUSEN LIN, JANET E. STOUT, VICTOR YUCAMBRIDGE UNIVERSITY PRESS, INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY, FEBRUARY 2011 IntroductionThis study reviewed the efficacy of different disinfection methods for controlling Legionella in hospitals, including copper-silver ionization, chlorine dioxide, hyperchlorination, monochloramine, UV, point-of-use filtration, and superheat-and-flush. The four criteria each disinfection method must meet to validate efficacy include: ResultsA summary […]
Intermittent Use of Copper-Silver Ionization for Legionella Control in Water Distribution Systems: A Potential Option in Buildings Housing Individuals at Low Risk of Infection
ZEMING LIU, JANET E. STOUT, MARCIE BOLDIN, JOHN RUGH, WARREN F. DIVEN, VICTOR L. YUOXFORD ACADEMIC, CLINICAL INFECTIOUS DISEASES, JANUARY 1998 IntroductionThis study evaluated three healthcare facilities colonized with Legionella to determine if: ResultsThe Legionella positivity rate (percentage of test sites positive for Legionella) was significantly reduced for the two test buildings using copper-silver ionization. Both […]
Experiences of the First 16 Hospitals Using Copper-Silver Ionization for Legionella Control: Implications for the Evaluation of Other Disinfection Modalities
JANET E. STOUT, VICTOR L. YUCAMBRIDGE UNIVERSITY PRESS, INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY, AUGUST 2003 IntroductionThis study examined 16 acute care hospitals using copper-silver ionization as a disinfection method. Surveys were deployed in 1995 and 2000 to gather information from each hospital. The 2000 survey was up to 11 years after installation for some hospitals. ResultsBefore […]
Controlled Evaluation of Copper-Silver Ionization in Eradicating Legionella pneumophila from a Hospital Water Distribution System
ZEMING LIU, JANET E. STOUT, LOU TEDESCO, MARCIA BOLDING, CHARLES HWANG, WARREN F. DIVEN, VICTOR L. YUTHE UNIVERSITY OF CHICAGO PRESS, THE JOURNAL OF INFECTIOUS DISEASES, APRIL 1994 IntroductionThis study evaluated the efficacy of copper-silver ionization in a hospital with active Legionella colonization after superheat-and-flush and hyperchlorination had proven ineffective. ResultsSix months after installation, the Legionella positivity […]
Control of Legionella Contamination and Risk of Corrosion in Hospital Water Networks Following Various Disinfection Procedures
ISABELLA MARCHESI, GRETA FERRANTI, ANTONELLA MANSI, ANNA M. MARCELLONI, ANNA R. PROIETTO, NAVNEET SAINI, PAOLA BORELLA, ANNALISA BARGELLINIAMERICAN SOCIETY FOR MICROBIOLOGY, APPLIED AND ENVIRONMENTAL BIOLOGY, MAY 2016 IntroductionThis study evaluated four disinfection methods for their efficacy in controlling Legionella and their corrosive effects on water pipes. The four disinfection methods included: ResultsLegionella controlOf the four disinfection […]
Controlling Legionella in Hospital Water Systems: Experience With the Superheat-and-Flush Method and Copper-Silver Ionization
JANET E. STOUT, YU-SEN E. LIN, ANGELLA M. GOETZ, ROBERT R. MUDERCAMBRIDGE UNIVERSITY PRESS, INFECTION CONTROL AND HOSPITAL EPIDEMIOLOGY, DECEMBER 1998 IntroductionThis study evaluated the efficacy of superheat-and-flush and copper-silver ionization for Legionella control in an acute care hospital. The hospital had been using the superheat-and-flush method for 13 years but was still experiencing incidences of […]
Controlling Legionella pneumophila in Water Systems at Reduced Hot Water Temperatures with Copper and Silver Ionization
ELAINE CLOUTMAN-GREEN, VERA L BARBOSA, DIEGO JIMENEZ, DANIEL WONG, HELEN DUNN, BRIAN NEEDHAM, LENA CIRIC, JOHN C HARTLEYELSEVIER, AMERICAN JOURNAL OF INFECTION CONTROL, JANUARY 2019 IntroductionThis study was conducted at a newly built healthcare facility in the United Kingdom. There, the Department of Health recommends maintaining hot water temperatures above 131o F (55o C) to control Legionella in water […]
Use of Copper-Silver Ionization for the Control of Legionella in Alkaline Environments at Healthcare Facilities
DAVID M. DZIEWULSKI, ERIN INGLES, NECULAI CODRU, JOHN STREPELIS, DIANNA SCHOONMAKER-BOPPELSEVIER, AMERICAN JOURNAL OF INFECTION CONTROL, JULY 2015 IntroductionThis study examined two healthcare facilities using copper-silver ionization to control Legionella in alkaline water conditions. One facility was an acute care facility with a pH range of 8.7-9.9. The other was a long-term care facility with a pH […]
Why Legionella Testing is Essential for Building Owners
An essential part of building ownership is ensuring your drinking water is safe. This includes having an active water management program and conducting regular testing for Legionella bacteria. What is Legionella? Legionella is a type of bacteria that can grow in your building’s water system. Legionella is pathogenic, meaning that exposure to it can cause disease. It […]
News Release: New Study Shows Copper-Silver Ionization is Effective for Legionella Control
Legionnaires’ disease cases have increased nearly tenfold in recent decades, leading to thousands of hospitalizations and deaths. Outbreaks are linked to Legionella, a bacteria found in potable water systems in large facilities like hospitals, multi-family buildings, resorts, and office buildings. A recently published study shows that copper-silver ionization effectively controls Legionella in building water systems […]
