Test Overview
Immunofluorescence Assay (IFA)
CALIFORNIA VIRUS (La CROSSE) ENCEPHALITIS ANTIBODY
IgG: <1:10
IgM: <1:10
Reference values apply to all ages.
EASTERN EQUINE ENCEPHALITIS ANTIBODY
IgG: <1:10
IgM: <1:10
Reference values apply to all ages.
ST. LOUIS ENCEPHALITIS ANTIBODY
IgG: <1:10
IgM: <1:10
Reference values apply to all ages.
WESTERN EQUINE ENCEPHALITIS
IgG: <1:10
IgM: <1:10
Reference values apply to all ages.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
* Serum testing is not advisable to order as IgM and IgG seropositivity can persist for months or years after acute infection
Test Details
2 - 5 days
Specimen Requirements
Collect specimen in an SST or red top tube. Spin and Aliquot into a screw capped plastic tube. Send to Specimen Processing refrigerated.
Additional Information
Test performed by Mayo Clinic Laboratories