Result Values:
Qualitative results for SARS-CoV-2 IgG will be reported as:
Qualitative Result:
  • < 50.0 AU/mL - NEGATIVE
  • ≥ 50.0 AU/mL - POSITIVE
  • INVALID
A positive result indicates that a person had an immune response to the COVID-19 virus and were likely to have had previous exposure to the virus. A negative result means there is no evidence the person was previously infected with COVID-19. However, this does not completely rule out past infection, it simply means there are no antibodies currently or remaining in the person's system.
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