legionellosis prevention Articles

  • Preventing Legionellosis - Published version

    Legionellosis is the condition of being infected by Legionella bacteria. Recent news has increased awareness about how important it is to prevent the hazard that causes legionellosis from harming people in health-care facilities. In October 2005, a $600 million class action lawsuit was filed onbehalf of legionellosis victims at the Seven Oaks Home for the Aged, along-term ...


    By Phigenics, LLC

  • Public Health - Preventing Legionellosis

    Since it was reconginsed 30 years ago, legionellosis has affected millons of people. William F McCoy, author of a new book from IWA Publishing, looks at the steps needed to mount an effective reponse to the disease. Next year marks the 30th anniversary of the 1976 American Legion convention of military veterans held in Philadelphia, Pennsylvania. It is remembered primarily not for the ...


    By Phigenics, LLC

  • ASHRAE Standard 188P: Prevention of Legionellosis Associated with Building Water Systems

    For Presentation at the AWT 2011 Convention and Exposition  The American Society of Heating, Refrigerating and Air-conditioning Engineers (ASHRAE) has developed a proposed Standard Practice that specifies what is required to prevent legionellosis associated with building water systems. Standard 188P is a “Practices” standard – not a “Design” or ...


    By Phigenics, LLC

  • Using Hazard Analysis and Critical Control Point Water Management Plans to Prevent Legionellosis

    ABSTRACT Legionellosis is an environmental-source disease caused by Legionella bacteria. Many such diseases are prevented using a scientifically-based risk management process called Hazard Analysis and Critical Control Point (HACCP; pronounced “Hassip”). Water Management Plans based on HACCP have been proven effective for preventing legionellosis. Perspective is given for how ...


    By Phigenics, LLC

  • Controlling scale in water systems helps prevent legionella

    The Legionella bacterium, Legionella Pneumophila (LP), the fundamental agent of Legionnaire’s Disease, is a water-based organism, which causes infection when inhaled in an aerosol form. Legionnaires' Disease acquired its name in 1976 when an outbreak of pneumonia occurred among persons attending a convention of the American Legion in Philadelphia. Later, the bacterium causing the illness ...

  • A Look at the Impact of Proposed Water Standard to Prevent Legionnaires` Disease

    From the standpoint of water treatment industry experts, failure to prevent legionellosis (or Legionnaires’ Disease) is the most significant water treatment problem today. Essentially every case of the disease is the result of exposure to inadequately managed building watersystems, and both utility and potable water systems can be the source of the hazard (i.e., Legionella bacteria). In ...


    By Phigenics, LLC

  • Why Is Public Concern Muted With Legionnaires’ Disease?

    Every year in the U.S., there are an estimated 25,000 cases of Legionnaires’ disease and 4,000 deaths. ASHRAE Journal recently interviewed William F. McCoy, Ph.D., MemberASHRAE, on issues relating to Legionnaires’ disease. McCoy is a member of ASHRAE Technical Committee 3.6,Water Treatment, and the committee upgrading the ASHRAE Guideline 12, Minimizing the Risk of ...


    By Phigenics, LLC

  • Cooling Technology Institute - A new method to measure viable Legionella and total heterotrophic aerobic bacteria.

    A new field method to measure viable Legionella and total heterotrophic aerobic bacteria was evaluated in the laboratory, in split-sample blinded comparisons and in actual operating field conditions. The method was proven reliable for determining viable cell concentrations of Legionella pneumophila serogroup 1, serogroups 2-14 and Legionella species. Total heterotrophic aerobic bacteria ...


    By Phigenics, LLC

  • Legionnaires’ disease (Legionella pneumophila)-sometimes deadly, sometimes not!

    More than 90% of Legionella cases are caused by Legionella pneumophila, a bacterium that thrives in warm to hot water.  Pipes, tanks, faucets, showerheads, and hot water heaters are ideal breeding grounds for L. pneumophila.  Since infection with Legionella occurs through inhaling the bacterium, any activity in which contaminated water can be misted and subsequently inhaled can lead to ...


    By Atlantic Environmental, Inc.

  • Surveillance of Legionella species in hospital water systems: the significance of detection method for environmental surveillance data

    Monitoring of hospital water systems to prevent and control nosocomial legionellosis is important from a public health perspective. This study was conducted to survey the prevalence of Legionella contamination of hospital waters. A total of 44 water samples from the hot-water system of 11 hospitals were tested for Legionella by a culture method and a nested polymerase chain ...


    By IWA Publishing

  • New York Legionella regulations: are they missing the boat?

    Abstract A large outbreak of Legionnaires’ disease in the Bronx in 2015 prompted NYC to enact law and NYS to propose emergency regulations on the registration and maintenance of cooling towers. This paper describes the fundamental characteristics of point sourced vs. potable water sourced outbreaks and discusses the Bronx outbreak from those perspectives. Ultimately a case is made that ...


    By Evapco Inc.

  • A New Field Method for Enumerating Viable Legionella And Total Heterotrophic Aerobic Bacteria

    Presentation at the 2007 Association of Water Technologies Convention and Exposition ABSTRACT A new field method for the quantitative determination of viable Legionella and total heterotrophic aerobic bacteria was evaluated in hundreds of laboratory experiments and from analysis of over two thousand field samplers in actual operating conditions. The method has been proven reliable for ...


    By Phigenics, LLC

  • Legionella

    Nomenclature Legionnaires' disease a pneumonia caused by any serogroup or sub-group of Legionella pneumophila Legionella pneumonia a pneumonia caused by any species of Legionella Pontiac Fever an acute, self-limiting, “flu-like” illness caused by certain species of Legionella Legionellosis any human ...

  • IAQ investigators often overlook Bacteria as the Root Cause of Occupant Complaints

    Untitled Document Many investigators have been dealing with mold issues the last few years and may have been overlooking bacteria as the underlying microbial problem. Bacteria ...


    By EMSL Analytical, Inc.

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