Legionella pneumophila (sputum, lavage)

Legionella pneumophila is a bacterium that can cause serious respiratory infections, including Legionnaires’ disease. Early detection and appropriate treatment are essential for managing this infection. At IntroLab, we provide reliable testing for the detection of Legionella pneumophila in sputum and lavage samples.

When is the Legionella pneumophila test performed?

The test is recommended when there is suspicion of Legionella pneumophila infection, particularly in patients with pneumonia that does not respond to standard treatment, or in those who have been exposed to potential sources of Legionella. Early diagnosis enables the prompt initiation of appropriate treatment, which can greatly improve the prognosis.

What is Legionnaires’ disease?

Legionnaires’ disease is a severe form of pneumonia caused by the bacterium Legionella pneumophila. This bacterium is naturally found in freshwater sources like lakes and rivers but can become problematic when it spreads into artificial water systems, such as air conditioning units, fountains, cooling systems, and hot water systems.

How is it transmitted and what are the symptoms?

The infection occurs when a person inhales tiny droplets of water contaminated with the bacteria. Legionnaires’ disease is not spread directly from person to person. Symptoms of the disease include:

• High fever
• Chills
• Cough
• Headache
• Muscle pain
• Confusion or mental disorientation

Symptoms usually appear 2 to 10 days after exposure to the bacteria.

Legionnaires’ disease can be life-threatening, particularly in older adults, people with chronic health conditions, or those with weakened immune systems. The good news is that it can be treated with antibiotics if diagnosed early.