How much time passed between the illness and the antibody test?
What kind of antibody test, IgG IgM or T-cell?
Reason I ask is back in March 2020 I had shortness of breath, fatigue, loss of smell, no fever or cough, and tested negative at the urgentcare for flus and strep (no covid test was available).
“How much time passed between the illness and the antibody test?”
a few weeks: enough time for IgG to develop but not dissipate ...
“What kind of antibody test, IgG IgM or T-cell?”
both IgG & IgM, but not T-cell ... one problem with antibody tests of course is which antibodies are being tested for ... each test seems to select different antibodies to test for ...