What is Legionella?
Legionella is a pathogenic bacteria which causes Legionnaires’ disease, an illness with symptoms similar to pneumonia and Pontiac fever, a mild, flu-like illness.
The symptoms of Legionnaires’ disease include fever, chills and a cough, sometimes with bloody sputum. Some people with Legionnaires’ disease also suffer from muscle aches, tiredness, loss of appetite, loss of coordination or ataxia, chest pains, diarrhea or vomiting. A less common but still nonetheless present symptom is confusion and impaired cognition. The length of time between the onset of Legionnaires’ disease after exposure to legionella and the appearance of symptoms can range from 2 to 10 days. Pontiac fever has all the symptoms of a mild flu, but unlike Legionnaires’ disease the fever is self-resolving and will probably go undiagnosed.
Legionella grows in warm, humid conditions where iron is present. Areas which run the risk of transmitting the bacteria include hot tubs, air conditioning and water heating systems in homes, offices, hotels and hospitals. The ideal temperature for the bacteria is between 25ºC and 45ºC. It is transmitted through contaminated water or through water vapour in the air. Diseases arising from the bacteria are more likely to affect people who are older, smokers and people who have an already compromised immune system. The fatality rate for Legionnaires’ disease can range from 5% to 30% depending on the speed of diagnosis and treatment. The disease can be difficult to diagnose because of the unusually long incubation period before symptoms begin to show, after which multiple tests need to be undertaken to rule out other pneumonia-like diseases.
Given the high death rate from Legionnaires’ disease, it’s important that the home remains free from the bacteria, meaning that steps have to be taken to reduce the risk of conditions which the bacteria finds favourable. Any water system has to be properly maintained as per health and safety regulations. As a landlord, you should know the extent to which this responsibility falls upon you and how to ensure that this is undertaken.
Home Maintenance and Landlord Responsibilities
As a landlord, you have a legal duty to combat Legionnaires’ disease by ensuring that your property is habitable and doesn’t pose a risk to tenants or visitors. Part of that legal duty involves carrying out a risk assessment, in order to identify and assess sources of, as well as manage, risk of bacterial infection from legionella. Another part of that legal duty involves maintaining the facilities in your property to minimise as far as possible the risk of legionella and making sure that your tenants are aware of any risks and know how to manage and safely maintain the facilities in the property in the light of these risks.
You need to carry out the risk assessment either by yourself, or by an employee. You need to record the risk assessment so that if legionella does become a problem, or if you are taken to court because a tenant claims that you did not take the proper precautions, you can demonstrate that the proper steps were taken in a specific time frame. This record would include the facilities checked, how they were checked and what the results of the check were.
The law is clear. Since the L8 Approved Code of Practice (Third Edition) was published in 2001 and the Control of Substances Hazardous to Health Regulations in 2002, a framework for the assessment of risk of legionella has been laid out for landlords in both business and residential properties.
The Health and Safety at Work Act, in force since 1974, says “It shall be the duty of every self-employed person to conduct his undertaking in such a way as to ensure, so far as is reasonably practicable, that he and other persons (not being his employees) who may be affected thereby are not thereby exposed to risks to their health or safety.”
What are the penalties for failing to comply with these responsibilities?
For landlords who do not comply with the Code of Practice, local authorities can undertake an enforcement action, forcing the landlord to comply. If the landlord still fails to comply, they can face a fine or even a prison sentence.
How to Prevent Legionella Growth?
Legionella thrives when two conditions are present. The first is a source of water that is at between 25ºC and 45ºC. The other is the presence of impurities in the water that could be used by the bacteria for food, which can be rust, algae or limescale.
The first thing that you can do to prevent legionella from occurring in a property that you’re renting out is to know the risks. People who are 50 or over, smokers, people with long term illnesses or weakened immune systems, are all at a higher risk than the general public. If your tenants fall into any of these groups, you should take extra care to make sure that the home they are paying to live in is hospitable, free from damp and properly heated. If they are eligible for a winter fuel allowance, you might want to make them aware of it if they do not take advantage of this already.
The next step is to work at actively maintaining the proper functioning of the property’s heating and water supply. This means maintaining and making any necessary repairs to the boiler system, to the water pipes and to the plumbing. It is important to check for bacterial infection as well as sources of limescale or rust in the water and checking that the pipes and heating are working properly.
Next, if there are any signs that your tenant has some or all of the symptoms of Legionnaires’ disease or Pontiac fever, you should advise them to seek medical attention and check that the heating system and property are free from any signs of legionella. Since water systems of neighbouring houses are connected, you should notify the Water Board and the local authorities to ensure that legionella doesn’t spread to any of the other properties.
If you follow these simple steps then not only will you have fulfilled your legal duties as a landlord to ensure the health and safety of your tenants, you may prevent them from getting a life threatening disease. Legionella can kill, so negligence in this area is not an option.
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