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Worcestershire Acute Hospitals NHS Trust
Legionella urinary antigen detection
CategoryMicrobiology - Virology
Request form
Relevant clinical details, including CURB-65 score, travel history, details of any immunosuppression and date of onset of symptoms should be included on the request form.
Test information
This is an antigen-based test that only detects serogroup 1 Legionella. Note it does NOT pick up other serogroups and therefore a negative test does NOT exclude Legionnaires’ disease. Please discuss further with medical microbiologist if the test is negative but the clinical suspicion remains high.
Specimen MUST reach the lab within 24 hours of collection. If a delay occurs, please refrigerate specimen at 2-8°C until the specimen can be transported to the laboratory.
Special requirements
Legionella urine testing is only performed routinely on inpatient samples. If Legionnaires’ disease or Pontiac fever is suspected in a patient in primary care, the GP must discuss the patient with PHE before sending the sample to the laboratory for testing.
Tube type
Universal urine container
Plain topped sterile container
TAT Inpatient
<24 hours
Page last updated: 08 September 2021