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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]
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.
A legionellosis is any disease caused by Legionella, including Legionnaires' disease (a pneumonia) and Pontiac fever (a related upper respiratory tract infection), [10] but Legionnaires' disease is the most common, so mentions of legionellosis often refer to Legionnaires' disease. The bacterium is found naturally in fresh water. [4]
Legionella sp. under ultraviolet illumination Scientific classification; Domain: Bacteria: Phylum: Pseudomonadota: Class: Gammaproteobacteria: Order: Legionellales: Families and genera Legionellaceae Legionella Coxiellaceae Aquicella Coxiella Diplorickettsia Rickettsiella "Ca. Berkiella" [1] "Ca. Fiscibacter" [1] "Ca.
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, smokers and ...
[7] [12] The diderm bacteria can also be further differentiated between simple diderms lacking lipopolysaccharide (LPS); the archetypical diderm bacteria, in which the outer cell membrane contains lipopolysaccharide; and the diderm bacteria in which the outer cell membrane is made up of mycolic acid (e. g. Mycobacterium). [9] [10] [12] [13]
Man-made water sources “become a health problem when small droplets of water that contain the bacteria get into the air and people breathe them in,” the CDC said in a fact-sheet. The majority ...
Parts-per-million cube of relative abundance by mass of elements in an average adult human body down to 1 ppm. About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium ...