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Test ID: FFIL4    
Filaria IgG4 Antibody, ELISA

Available on the App Store

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.




         <1.00     Antibody Not Detected

1.00 - 4.00     Antibody Detected; may reflect cross-reactivity

                        due to other parasitic infections (i.e., trichinosis,

                        echinococcosis, schistosomiasis).

          >4.00   Antibody Detected; strongly suggestive of filarial



This assay was developed for the detection of IgG4 subclass

antibody to enhance specificity without sacrifice of

sensitivity. Antigens of Dirofilaria immitis are employed

that serologically crossreact with all filarial species,

including W. bancrofti, B. malayi, and O. volvulus. Chronic

elephantiasis may not result in a significant IgG4 antibody

response and cannot be ruled out by this test.


Test Performed by

Focus Diagnostics

5785 Corporate Avenue

Cypress, CA   90630-4750