June 10, 2020
Stagnant water systems can support the growth of legionella, these can then be released in an aerosol spray which can result in respiratory infection if inhaled. To avoid this the water system should have been flushed on a weekly basis. If this is not the case and your premises has been closed for more than 1 month, the following measures are recommended:
Further guidance can be found in the Charter Institute of Environmental Health new guidance document: Legionnaires’ disease: lockdown risks and reopening safely or the Health and Safety Executive’s information on Legionella risks during the coronavirus outbreak.