Registered Sanitarian Practice Test

Legionella pneumophila is primarily known for causing respiratory infections, specifically a severe form of pneumonia known as Legionnaires' disease. This bacterium thrives in water systems and can become aerosolized, leading to the inhalation of contaminated water droplets. Once inhaled, it can infect the lungs, resulting in symptoms typical of pneumonia, such as cough, shortness of breath, and fever. Understanding its primary association with respiratory infections is crucial for public health and environmental sanitation practices, as controlling the presence of Legionella in water systems can significantly reduce the risk of disease transmission.