Highfield Level 3 Award in Legionella Control for Responsible Persons (RQF) v3.6 9 • The way by which legionella bacteria multiply. To include: o A description of the size of bacteria o How legionella bacteria multiply o The differences between species of legionella and serogroups • The conditions required for legionella bacteria to grow within water systems o Temperatures between 200C and 500C o The presence of biofilm or other microorganisms o Stationary and stagnant water • The methods of transmission and infection o All known methods of infection ▪ Inhalation of contaminated aerosols ▪ Inhalation of droplet nuclei ▪ Aspiration of oral and pharyngeal liquids ▪ Invasive medical breathing techniques o How legionella bacteria grow within the body o How overcome an individual’s immune system • The factors that affect an individual’s susceptibility to Legionnaires’ disease o The factors that increase the risk of infection o The people mostly considered to be at risk ▪ Men ▪ The elderly ▪ Individuals with compromised immune systems o How the susceptibility of an individual is controlled by the strength and ability of their immune system to counteract the invasion of immune cells • The symptoms of Legionnaires’ disease o Initial symptoms of fever, chills, headache and muscle pain o Dry non-productive cough and severe breathing difficulties o Confusion, delirium, diarrhoea and vomiting o The difference between Legionnaires’ disease and pontiac fever • How cases of Legionnaires’ Disease can impact on the operation of a site o Individuals who work on a site may catch the illness from another source but the site may be implicated LO2: Understand how legislation and codes of practice can support the management of legionella bacteria • The relationship between legionella regulations and health and safety legislation o Key aspects of Approved Code of Practice L8 and Technical Guidance HSG274 o The difference between the Approved Code of Practice and the Technical Guidance o Its relationship with HASWA, COSHH, RIDDOR etc. o Its legal status in a court of law • The consequences for non-compliance with legislation and codes of practice
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