Home Health Legionella risks during the coronavirus outbreak: advice for businesses

Legionella risks during the coronavirus outbreak: advice for businesses

by Laura Johnston

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:

  • Hot and cold water systems
  • Cooling towers and evaporative condensers
  • Commercial spa pools and hot tubs

The Health and Safety Executive have shared the following advice and we ask all Knowsley based businesses to take note to protect yourselves, your business and your customers:

You should review your risk assessment and manage the legionella risks to protect people when the water system is reinstated or returned to use.

If the water system is still used regularly, maintain the appropriate measures to prevent legionella growth.

You can find out what Legionnaires’ disease is, where it comes from, how people get it and symptoms and treatment by reading our guidance: What is Legionnaires disease?

For more information on legionella and your duty as an employer, visit:



or contact:

Knowsley Borough Council, Environmental Health Team at: environmentalhealth@knowsley.gov.uk