Legionnaire's disease


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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.
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. 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).
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Legionnaire's disease

[‚lē·jə′nerz di‚zēz]
(medicine)
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.
References in periodicals archive ?
Legionnaire's disease cannot be spread from person to person and can only be contracted by breathing in contaminated water.
Last year the team undertook a project to raise awareness about Legionnaire's Disease by visiting business and doing routine tests.
Philip John Roberts, 59, from Cross Keys, and Linda Johnson, 52, from Barry, died from Legionnaire's disease after staying at the Culverhouse Cross hotel.
'No new cases of legionnaire's disease have been confirmed and the total remains at 28.'
A death certificate, which has now been issued, confirms Legionnaire's disease contributed to her death.
It was only the post mortem which showed he had contracted Legionnaire's disease, the hearing at Warrington Coroners Court heard.
Ian Cumming, chief executive of Morecambe Bay NHS Trust, said that, historically, about 15 per cent of those hospitalised with Legionnaire's Disease "would not pull through".
Legionnaire's Disease is often associated with hospitals because of their complicated plumbing systems which contain dead-ends where the bug can develop.
Legionnaire's Disease is monitored by the Communicable Disease Surveillance Centre in London, which registered three cases of the pneumonia-like illness among guests in July, November and earlier this month.
The Legionella (http://www.cdc.gov/legionella/about/) bacteria  that causes Legionnaire's disease is naturally found in freshwater lakes and rivers but it becomes a problem when it makes its way to the public water supply.
A PATIENT at the University Hospital of Wales in Cardiff is being treated for legionnaire's disease, it emerged last night.