January 31, 2022. SD Biosensor, Inc., a global in-vitro diagnostics company, is voluntarily recalling its STANDARD Q COVID-19 Ag Home Test in the United States, due to confirmed reports that the test kits were illegally imported into the United States. The STANDARD Q COVID-19 Ag Home Test is not authorized, cleared or approved by the U.S. Food and Drug Administration (FDA) for distribution or use in the United States. While there is no known distribution of these tests directly to consumers, SD Biosensor, Inc. is issuing this voluntary recall out of an abundance of caution.
STANDARD Q COVID-19 Ag Home Test
STANDARD Q COVID-19 Ag Home Test is a rapid chromatographic immunoassay for the qualitative detection of SARS-CoV-2 nucleocapsid antigen present in human nasal sample. It provides only an initial screening test result. The result of this test should not be the sole basis for the diagnosis; confirmatory testing is required.

https://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/sd-biosensor-issues-notification-voluntary-recall-standard-q-covid-19-ag-home-test