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Understanding legionellosis - Signs of disease

Don't overlook a persistent cough. Understanding Legionellosis, a severe type of pneumonia caused by bacteria, is crucial for your health. Knowing the risks and symptoms can protect you and your family from this potentially fatal illness.

What are the main causes of Legionellosis?

  • Legionella bacteria thrive in complex, man-made water systems like those found in large buildings, including hotels, hospitals, and office towers.
  • People typically contract the disease by inhaling microscopic water droplets (aerosols) containing the bacteria from sources like showers, hot tubs, and air-conditioning units.
  • The bacteria can also multiply in decorative fountains, cooling towers, and other large-scale plumbing systems that are not properly maintained or cleaned.
Recognizing common Legionellosis symptoms
Recognizing common Legionellosis symptoms

Key symptoms of Legionellosis to watch for

  • Symptoms usually begin with a high fever, chills, and a headache, often appearing two to ten days after your initial exposure to the bacteria.
  • A persistent cough, which may produce mucus or even blood, is a hallmark sign of the infection, often accompanied by shortness of breath and chest pains.
  • Sufferers may also experience significant muscle aches, profound fatigue, nausea, and confusion, which indicates a widespread infection affecting multiple body systems.

How can you prevent Legionellosis effectively?

  • Ensure the regular maintenance and disinfection of all water systems, including hot tubs, cooling towers, and large plumbing networks, to prevent bacterial growth.
  • When using home humidifiers and respiratory therapy devices, always use sterile water instead of tap water and clean them according to manufacturer instructions.
  • Smokers and individuals with weakened immune systems should be particularly cautious around potential sources like hot tubs and public decorative fountains.

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Images Visual Examples of Legionellosis 

Chest X-ray showing Legionellosis pneumonia
Chest X-ray showing Legionellosis pneumonia
Microscopic view of bacteria Legionellosis
Microscopic view of bacteria Legionellosis
Doctor discussing Legionellosis treatment
Doctor discussing Legionellosis treatment
A common Legionellosis cause: cooling tower
A common Legionellosis cause: cooling tower
How is Legionellosis transmitted diagram
How is Legionellosis transmitted diagram
Timeline of the Legionellosis incubation period
Timeline of the Legionellosis incubation period

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Early diagnosis is key to a successful recovery from Legionellosis. If you experience these symptoms after a potential exposure, consult a healthcare professional immediately for expert advice and prompt treatment.

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