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Discover the fast, proven and trusted COVID-19 antigen test that is readily available over-the-counter at retailers across the country. Purchase the Celltrion DiaTrust™ COVID-19 Ag Home Test and perform the test with a simple nasal swab in the comfort and convenience of your home. #1 COVID-19 Self Test in the US: Celltrion DiaTrust™ COVID-19 Antigen Self Test uses the same technology used by doctors and is Made in the USA. SIMPLE AND EASY TO USE: Requires just a shallow nasal swab that you can do yourself; includes easy-to-follow instructions. SEE RESULTS IN 15 MINUTES: Convenient, fast results anytime, anywhere; no need for a prescription or send to a lab. FOR AGES 14 YEARS OR OLDER: For all people 14 and older to self-administer. DETECTS ACTIVE COVID-19 INFECTION: Includes 25 tests that are indicated for serial testing—simply test yourself twice within 3 days, at least 24 hours apart; designed to detect active infection with or without symptoms. Detects multiple strains, including the DELTA variant.