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GTR Home > > DiaSorin LIAISON® SARS-CoV-2 S1/S2 IgG Test


Sample Negative Report


Not provided

Sample Positive Report


Not provided

Comments about the test interpretation (e.g. clinical implication of test results)

The analyzer automatically calculates SARS-CoV-2 S1/S2 IgG antibody concentrations expressed as arbitrary units (AU/mL) and grades the results. Assay range. Up to 400 AU/mL. A negative result (< 15.0 AU/mL) may indicate absence or level of IgG antibodies to SARS-CoV-2 below the limit of detection of this test. A negative result can also be seen in samples taken during an acute infection prior to IgG seroconversion. A positive result (≥ 15.0) indicates the presence of IgG antibodies to SARS-CoV-2 and generally indicates exposure to SARS-CoV-2. Test results are reported qualitatively as positive or negative. However, diagnosis of SARS-CoV-2 infection should not be established on the basis of a single test result, but should be determined in conjunction with clinical findings, patient history, and always in association with medical judgment.


Is research allowed on the sample after clinical testing is complete?Help
Not provided

Clinical resources

Practice guidelines

  • NICE, 2022
    UK NICE Guideline NG191, COVID-19 rapid guideline: managing COVID-19

Consumer resources

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.