Coronavirus Antibody Testing in Cedar Grove, NJ COVID-19 antibody (serology) testing is available at AFC Urgent Care. Known as SARS-CoV-2 AB, antibody testing is performed via a blood draw with results typically available within two to three days. The FDA has not approved antibody testing, but has provided an Emergency Use Authorization. Antibody testing is covered by most health insurance plans. Who Is Eligible For Antibody Testing? Patients aged 8 years or older who have ...