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Filaria Serology

Alias: Filariasis, TPE, Tropical Pulmonary Eosinophilia

Discipline: Virology

Test information: Filaria serology is a non-specific screening test that is positive in many types of filariasis and cross-reacts in cases of strongyloidiasis. It is most useful in the diagnosis of Tropical Pulmonary Eosinophilia (TPE). This test cannot determine the species of Filaria infection. This may be done if microfilariae are seen in a blood film, or by staining the microfilariae obtained by filtration.

Availability: Referred to Hospital for Tropical Disease, Health Services laboratories (HSL): Monday - Friday during routine hours: 08:45 - 17:15.

Turnaround Time: 10 Days upon receipt at Hospital for Tropical Disease

Specimen Type(s)
  • Clotted blood;
Other Acceptable Specimen Type(s)
Specimen Container - Adult
  • Gold Top SST BD;
Specimen Container - Paediatric
  • Plain Top Sarstedt;
  • Filaria non-specific antibodies;
Part of a test profile?
Volume (min) of sample to be sent to laboratory
0.5mL Serum
Patient Preparation, Sample Handling and Transport
  • Minimum-clotting time 30 minutes.
  • Specimens should be transported to the laboratory as soon as possible.
  • Outside of normal hours samples should be refrigerated (2 °C to 8 °C).
Maximum add on time
Units and Reference Ranges / Interpretation
Weak Positive: Level 1 - 2
Strong Positive: > Level 5
UKAS number
UKAS accredited test?

If you have any queries about a test or results interpretation please contact us.

Last updated: 09-06-2023