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LEGIONELLA ANTIBODY

Synonym(s):

​Legionella Antibody

Description

Indications

Specimen Required

​3 mL plain blood
Paired acute and convalescent sera (3 – 6 weeks after onset of fever) should be sent. Acute phase sera are tested alone; a convalescent specimen is requested and when received will be run together with the acute phase sera.

Storage and Transport

Method

​Immunofluorescence

Test Results

Results reported as “Detected” or “Not detected” at the screening titre (1:128) for the acute phase sera.

If both acute and convalescent sera are received, they will be run at doubling dilutions from 1:128 to 1:1024.

A fourfold rise in titre between acute and convalescent sera is considered proof of ongoing infection.

A single sample titre is considered inconclusive. 

Reference Interval / Value

Turnaround Time

​Range 1 – 4 days

Day(s) Test Set up

​Monday – Friday

Remarks

Change History Notes

Others

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