Legionnaires Disease

Legionnaires' disease is a severe form of pneumonia caused by Legionella bacteria. It often spreads through water systems like air conditioning or hot tubs and can cause symptoms like cough, fever, and difficulty breathing.

What is Legionnaires' disease?

Legionnaires' disease is a type of pneumonia caused by bacteria called Legionella. It can make people very ill, but most people who get it recover with proper treatment.

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What are the symptoms of Legionnaires’ disease?

Symptoms usually show up two to ten days after being exposed to the bacteria. Common symptoms include:

  • Fever and chills
  • Cough
  • Shortness of breath
  • Chest pain
  • Muscle aches
  • Headache
  • Fatigue
  • Some people may also have gastrointestinal symptoms like nausea, vomiting, or diarrhoea

What causes Legionnaires’ disease?

Legionnaires’ disease is caused by inhaling tiny droplets of water that have the Legionella bacteria in them. This can happen when:

  • Water systems, such as hot tubs, showers, and taps, are contaminated
  • Air conditioning systems are not properly maintained
  • Water collected in large buildings or plants is not treated to kill the bacteria

How common is Legionnaires’ disease?

Legionnaires’ disease is not very common, but it does happen. The number of cases can increase during hot weather when people are using air conditioning more often. In the UK, several hundred cases are reported each year, but many people recover without serious issues.

Who is more likely to get Legionnaires’ disease?

Some people are at higher risk of getting sick from Legionnaires’ disease, including:

  • Older adults, especially those over 50
  • People with weakened immune systems
  • Those with chronic lung problems
  • People who smoke or used to smoke
  • Anyone with underlying health problems, like diabetes

How can I treat Legionnaires’ disease?

Legionnaires’ disease is treated with antibiotics. If someone is diagnosed, they will usually need to stay in hospital for the best chance of recovery. Early treatment is important.

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What’s the outlook for Legionnaires’ disease?

Most people who get treatment for Legionnaires’ disease recover completely, but recovery can take time. Some people may still feel tired and unwell for weeks or even months after treatment.

Final thoughts

Legionnaires’ disease is a serious but treatable illness. If you are worried about your health or think you might have symptoms, it is important to talk to your GP or healthcare provider.

Always consult a medical professional
This article is for informational purposes only and is not a substitute for medical advice. Always consult a healthcare professional before starting, stopping or changing any medication. If you have concerns about your medication or experience side effects, speak to your doctor or pharmacist immediately.

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