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For use with Sofia 2.

The Sofia 2 SARS-CoV-2 Antibody IgG Fluorescent Immunoassay (FIA) is an immunofluorescence-based lateral flow assay for the detection of IgG antibodies to the nucleocapsid protein, spike protein 1, and spike protein 2 of SARS-CoV-2. The Sofia 2 SARS-CoV-2 Antibody IgG FIA with the Sofia 2 analyzer provides automated and objective results in 15 minutes, serving as an aid in identifying individuals with an adaptive immune response to SARS-CoV-2, indicating recent or prior infection. The assay may also aid in determining the presence of IgG antibodies in post-vaccinated individuals.

Healthcare professionals can purchase the Sofia 2 SARS-CoV-2 Antibody IgG FIA through select authorized distributors.

General Information - Coronavirus (COVID-19)
Information for Healthcare Professionals
Information for Laboratories
Laboratory Biosafety
Isolation Precautions in Healthcare Settings
Specimen Collection
Infection Control

Features & Benefits


One sample, three results

Time savings and patient comfort

Results in 15 minutes

Rapid results to support efficient dispositioning of patients

Objective, accurate results

Reliable results with no cross-reactivity to seasonal coronaviruses

Dual work modes

Adjusts to your volume fluctuations. Allows for significant throughput and batching of samples in READ NOW Mode

Easy to use

Seamless test workflow follows a similar format to CLIA-waived Sofia 2 assays

Virena connection

Provides automated tracking, data capture, reporting to healthcare authorities, and exclusive disease mapping

Fluorescent technology with automated read

Objective results that eliminate the subjectivity of visual-read results

Self-contained Test Cassette

Easy to use and to dispose

Product Specifications

Product Spec NameProduct Spec Data
Time to results

15 minutes

Sample type

Fingerstick Whole Blood, Venous Whole Blood, Serum, and Plasma

Kit storage conditions

Room temperature (15°C to 35°C / 59°F to 86°F)


Positive and negative, included in kit

PPA (sensitivity)

96.4% (fingerstick whole blood)

NPA (specificity)
80.0% (fingerstick whole blood)
97.4% (serum/plasma)
Shelf life

24 months

Ordering Information

Catalog NumberDescriptionKit Size / Case Size

Test Kit