Category Archives: Legionella

Information – Legionella risks during the coronavirus outbreak

HSE

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Employers, the self-employed and people in control of premises, such as landlords, have a duty to identify and control risks associated with legionella.

If your building was closed or has reduced occupancy during the coronavirus (COVID-19) outbreak, water system stagnation can occur due to lack of use, increasing the risks of Legionnaires’ disease. This may particularly affect:

For detailed guidance on Legionella and safer working during the coronavirus outbreak visit the HSE website.

Information – Controlling Legionella on Ships, Ferries & Maritime Vessels

Legionella Control

This expert guide from our water safety specialists looks at the control of legionella on ships, ferries and other maritime vessels. The guide considers the water safety risks that can arise on-board different vessels, the need to consider dry dock safety, why a detailed risk assessment and Water Safety Plan are essential, and concludes by outlining the potential consequences following an outbreak of Legionnaires’ disease.

When we hear about outbreaks of Legionnaires’ disease, we tend to associate them with scenarios that occur on land – in hotels, hospitals, leisure centres etc. However, there are similar opportunities for Legionella bacteria to grow and spread at sea too. Ships, ferries, cruise liners and other maritime vessels of all shapes and sizes can be affected, and as such must take suitable precautions to make sure their water systems are safe for those who use them or are exposed to them.

Research – How Temperature Influences Legionella Growth

Legionella Control

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In this review the experts at Legionella Control International look at how water temperatures influence legionella growth and how this information can be used to control the risks from the bacteria.

Under certain circumstances Legionella bacteria can lead to serious illness and fatalities in humans. Since Legionella bacteria can exist in man-made water systems, it is imperative to ensure the water is stored, maintained and distributed at temperatures that do not encourage the growth and spread of the bacteria.

There are three temperature ranges that have an influence on the growth and proliferation of Legionella bacteria. We’ll look at each of these in the link above.

Research – Can Hard Water & Limescale Increase Legionella Risks?

Legionella Control

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This specialist guide has been written by the water safety experts at Legionella Control International and asks if the presence of hard water and limescale increases the risks from Legionella bacteria and Legionnaires’ disease. The guide looks at the formation of scale in water systems, fittings and appliances and how it can encourage the growth of biofilm and bacteria including legionella. It concludes by reviewing what practical measures can be taken to prevent, or at least reduce the risks that limescale brings with it.

USA – Illinois: Legionnaires’ Disease reported at Quincy Veterans home

Outbreak News Today

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The Illinois Department of Veterans’ Affairs (IDVA) and the Illinois Department of Public Health (IDPH) are investigating a single case of Legionnaires’ disease in a resident at the Illinois Veterans Home – Quincy (IVHQ). The resident has received medical treatment and is recovering at IVHQ. No other cases have been identified and IVHQ continues to follow its plans to monitor residents for respiratory illness. The last case of Legionnaires’ disease at IVHQ was February 2018.

IDPH infectious disease staff are working with the facility to collect information and further investigate the resident’s illness. IVHQ has notified residents, staff, and families or power-of-attorneys. IVHQ continues to operate a robust water management program and is implementing best practices to control the growth and spread of waterborne pathogens. IVHQ provides additional water treatment, including filtration and disinfection, prior to use on its campus. IVHQ also maintains point of use filters on all fixtures in residential areas to reduce the possibility of transmission to susceptible individuals. IVHQ continues to conduct active surveillance for Legionella by monitoring residents and reviewing water quality data on an ongoing basis.

USA – Legionnaires’ Disease: Cases may be linked to Central DuPage Hospital

Outbreak News Today

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Illinois state and local health officials report investigating three cases of Legionnaires’ disease in individuals who were patients at Northwestern Medicine Central DuPage Hospital.

One individual was an inpatient, and the second and third individuals had outpatient visits. These patients could have acquired the infection at the hospital, but they also had other possible sources of exposure during the 10 days before they started showing symptoms.

The Illinois Department of Public Health (IDPH), the DuPage County Health Department (DCHD) and the hospital are working to information and further investigate these cases, which will include another on-site visit by IDPH to test the facility’s water. Central DuPage Hospital is working with IDPH to strengthen its water management plan and implement multiple control measures.

Europe -How Common is Legionnaires’ Disease in Europe?

Legionella Control

In this article the water safety experts at Legionella Control International ask the question… how common is Legionnaires’ disease in Europe, and what can be done to prevent it? It examines data from the ECDC (European Centre for Disease Prevention and Control) including records of how many people catch Legionnaires’ disease in Europe, and typical mortality rates. It then looks at what key steps can be taken to control the spread of the disease, including legionella risk assessment and the development and implementation of a Water Safety Plan or WSP.