[celltrion diatrust ] use for covid-19 under emergency use authorization (eua): covid 19 antigen test lot covgca 1005 expiration date nov 2, 2022 is generating false negative results at 15 minutes read time, as per insert.Initially detected faint positive result after 1 hour (insert indicates read time 15 minutes).Subsequent patients tested positive on home testing devices, results were negative on celltrion diatrust kit, indicated test kit.Sample was retested on alternate covid 19 antigen kit (allere binax now) obtained positive results as per package insert.Binax now from allere coincides with patient result obtained on home test kit.Fda safety report id# (b)(4).
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