The test is IgM negative, but is positive for IgG: The patient is having an early phase, active COVID-19 infection

The test is negative for both IgM and IgG: The patient has never been infected with COVID-19 or is still in the incubation period

The test is IgM negative, but is positive for IgG: The patient has recently been infected with COVID-19 and now has protection against COVID-19, or has been vaccinated against COVID-19

The test is positive for both IgM and IgG: The body has an active COVID-19 infection and is trying to build up protection against it

The test is positive for IgM, but is negative for IgG: The patient is having an early phase, active COVID-19 infection