Diagnostic Tests for Legionnaires' disease


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Diagnostic Test list for Legionnaires' disease: The list of diagnostic tests mentioned in various sources as used in the diagnosis of Legionnaires' disease includes:

Tests and diagnosis discussion for Legionnaires' disease: Legionnaires' disease is confirmed by laboratory tests that detect the presence of the bacterium, Legionella pnuemophila, or the presence of other bacteria in the family Legionellaceae.1

The diagnosis of legionellosis requires special tests not routinely performed on persons with fever or pneumonia. Therefore, a physician must consider the possibility of legionellosis in order to obtain the right tests.

Several types of tests are available. The most useful tests detect the bacteria in sputum, find Legionella antigens in urine samples, or compare antibody levels to Legionella in two blood samples obtained 3 to 6 weeks apart.2

Footnotes:
1. excerpt from Legionnaires' Disease: NIEHS_1
2. excerpt from Legionellosis (General): DBMD

Last revision: May 30, 2003

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