Kroger pharmacies offer rapid COVID-19 antibody tests for $25. There are also instances of the antibody test coming up with a false positive or false negative result. People who wear personal protective equipment (PPE) at work should continue to wear PPE, even if they test positive for antibodies to the virus. Don’t Antibody test results should not be used to determine if someone can return to work. READ: Here’s where you can get a free COVID-19 test in MichiganQuestions about coronavirus?