legionærsykdom

Legionærsykdom is a severe form of pneumonia caused by Legionella bacteria. These bacteria are commonly found in freshwater environments, such as lakes and streams, but can thrive in man-made water systems like cooling towers, hot tubs, and plumbing. Infection typically occurs when people inhale water droplets or mist containing the bacteria. It is not spread through person-to-person contact.

Symptoms of Legionærsykdom usually appear between two to ten days after exposure and can include fever, cough, shortness of breath, and muscle aches. Gastrointestinal symptoms such as diarrhea, nausea, and vomiting can also occur, as can neurological symptoms like confusion. A milder, flu-like illness called Pontiac fever can also be caused by Legionella bacteria, with similar symptoms but without pneumonia.

Diagnosis is usually made through laboratory tests, such as urine antigen tests or cultures of respiratory specimens. Legionærsykdom is treated with antibiotics. Prompt treatment is important as the disease can be serious and potentially fatal, especially for individuals with weakened immune systems or underlying health conditions. Prevention strategies focus on maintaining and disinfecting water systems to prevent bacterial growth.