All of the following are rapid methods used to definitively identify Legionella species, except

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All of the other options listed (direct fluorescent antibody, DNA detection, and urine antigen testing) are rapid methods that can definitively identify Legionella species. Indirect immunofluorescence can be used to detect antibodies to Legionella, but is not a rapid method for identifying the organism itself.

All of the Following Are Rapid Methods Used to Definitively