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Write-up: CONFIRMED IMMUNOLOGICAL VACCINE FAILURE; This spontaneous report received from a patient concerned a 45 year old female. The patient''s weight, height, and medical history were not reported. The patient received covid-19 vaccine ad26.cov2.s (suspension for injection, route of admin not reported, batch number: 182070, and expiry: UNKNOWN) dose was not reported, administered 1 total on 14-MAR-2021 around 12:00 PM at right arm for prophylactic vaccination. No concomitant medications were reported. On 19-APR-2021 the patient had a antibody test for Immunoglobulin M (IGM) and Immunoglobulin G (IGG) antibodies, and the antibody test showed no antibodies. She did the antibody test at home as she was part of a home clinical trial. Test results suggested that the patient experienced confirmed immunological vaccine failure. The action taken with covid-19 vaccine ad26.cov2.s was not applicable. The outcome of confirmed immunological vaccine failure was not reported. This report was serious (Other Medically Important Condition).; Sender''s Comments: V0 : 20210445661- covid-19 vaccine ad26.cov2.s-CONFIRMED IMMUNOLOGICAL VACCINE FAILURE. This event is considered not related. The event has a compatible/suggestive temporal relationship, is unlabeled, and has unknown scientific plausibility. There are other factors more likely to be associated with the event than the drug. Specifically: SPECIAL SITUATIONS.
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