antibody testing for Covid The best test I could find in terms of sensitivity and specificity in the point of care setting is the following: https://hardydiagnostics.com/sars-cov-2/ unfortunately it won't be available until May Sensitivity at >/= 15 days after onset of symptoms IgM – 95.7% IgG – 99.0% Specificity IgM – 99% IgG – 99%