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Legionnaire's disease(lē'jənârz`), infectious, sometimes fatal, disease characterized by high fever, dry cough, lung congestion, and subsequent pneumoniapneumonia
, acute infection of one or both lungs that can be caused by a bacterium, usually Streptococcus pneumoniae (also called pneumococcus; see streptococcus), or by a virus, fungus, or other organism.
..... Click the link for more information. . Major organs, such as the heart, may be damaged as the disease progresses. The disease struck over 180 people attending an American Legion convention in Philadelphia in July, 1976—hence the name. The causative bacterium, later identified as Legionella pneumophilia, may enter the lungs through aspiration of contaminated water, especially in patients who smoke or have lung disease; it also may be inhaled via contaminated water that has been aerosolized. People who smoke heavily, have lung disease, or have compromised immune systems are most at risk for the disease. A milder form of the disease has also been identified. Treatment is with the antibiotic erythromycinerythromycin
, any of several related antibiotic drugs produced by bacteria of the genus Streptomyces (see antibiotic). Erythromycin is most effective against gram-positive bacteria such as pneumococci, streptococci, and some staphylococci (see Gram's stain).
..... Click the link for more information. .
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Legionnaire's disease[‚lē·jə′nerz di‚zēz]
A type of pneumonia usually caused by infection with the bacterium Legionella pneumophila that was first observed at an American Legion convention in Philadelphia, Pennsylvania, in 1976. Symptoms include headache, fever reaching 102-105°F (32-41°C), muscle aches, a generalized feeling of discomfort, cough, shortness of breath, chest pains, and sometimes abdominal pain and diarrhea. Also known as Legionella pneumonia.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.