On Jun. 16, 2020, the FDA revoked the emergency use authorization (EUA) of the Chembio Diagnostic System DPP COVID-19 IgM/IgG System, a SARS-CoV-2 antibody test, due to performance concerns with the accuracy of the test. Antibody tests, a type of serological test, can help provide information on a personﾒs and populationﾒs exposure to COVID-19.