FlowFlex Covid-19 Antigen Rapid Test: Expires after 21 months; check the new expiration date based on the printed date here. Intrivo Diagnostics On/Go Antigen Self-Test: Expires after 21 months ...

For at least the third time this year, the FDA is warning about an unauthorized COVID-19 test that could give false results.

At-home test kits offer a quick and easy way to screen for COVID-19 and flu. Here’s where to find them, and what to know about rapid tests.

Previously, the test was authorized for emergency use in 2021. The Flowflex COVID-19 Antigen Home Test is a nasal swab test for at-home use by symptomatic individuals within 6 days of symptom onset.