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Legionella is a genus of gram-negative bacteria that can be seen using a silver stain or grown in a special media that contains cysteine, an amino acid.It is known to cause legionellosis [3] (all illnesses caused by Legionella) including a pneumonia-type illness called Legionnaires' disease and a mild flu-like illness called Pontiac fever. [3]
Legionnaires' disease is a form of atypical pneumonia caused by any species of Legionella bacteria, [3] quite often Legionella pneumophila.Signs and symptoms include cough, shortness of breath, high fever, muscle pains, and headaches. [2]
Legionella pneumophila, the primary causative agent for Legionnaire's disease, is an aerobic, pleomorphic, flagellated, non-spore-forming, Gram-negative bacterium. [ 1 ] [ 2 ] L. pneumophila is a intracellular parasite that preferentially infects soil amoebae and freshwater protozoa for replication.
How do you get it? You can contract Legionnaire's disease by inhaling the bacteria (legionella), but NOT from person to person contact. Because it is a disease that affects the lungs, older adults ...
The New Hampshire Department of Health and Human ... Legionnaires' disease is caused by inhaling water droplets contaminated with the Legionella bacteria. The bacteria can grow in water droplets ...
In order to grow, they need nutrients that might be scarce in their free form in the cell. To study the mechanism that intracellular parasites use to obtain nutrients, Legionella pneumophila , a bacterial facultative intracellular parasite, has been used as a model.
Legionnaires’ disease is a type of pneumonia caused by Legionella bacteria. The bacteria can grow in any area where water sits for a long time, according to Dr. Andrew Handel, a pediatric ...
Diseases caused by facultative intracellular bacteria include Listeriosis (Listeria monocytogenes), Typhoid Fever (Salmonella typhi), Legionnaires' disease (Legionella pneumophila), and Salmonellosis (Salmonella enterica) to name a few. [3] While they can invade the human body, they are also capable of living extracellularly.