EVERYTHING TASTE FUNNY; CONFIRMED CLINICAL VACCINATION FAILURE; CONFIRMED COVID-19 INFECTION; This spontaneous report received from a patient via other manufacturer (Pfizer) and concerned a 41 year old female. Initial information was processed along with additional information received on 04-AUG-2022. The patient's height, and weight were not reported. The patient's concurrent conditions included: drug allergy (Augementin), and other pre-existing medical conditions included: Patient was not pregnant at the time of vaccination. Patient did not have any relevant medical history and concurrent conditions. The patient received covid-19 vaccine ad26.cov2.s (dose number in series 1) (suspension for injection, route of admin not reported, batch number: 042A21A, expiry: unknown) dose was not reported, 1 total, administered on 06-APR-2021 for covid-19 prophylaxis. Age at time of vaccination 40 years old. The patient received additional dose of non-company suspect vaccine included: Moderna covid-19 vaccine (Elasomeran) (dose number in series 2) (form of admin and route of admin were not reported and batch number: 026D21A , expiry: unknown) dose was not reported, administered on 26-OCT-2021 for covid-19 prophylaxis. Concomitant medications included dextromethorphan hydrobromide/doxylamine succinate/ephedrine sulfate/ethanol/paracetamol (Nyquil), dextromethorphan hydrobromide/guaifenesin/paracetamol/pseudoephedrine hydrochloride (Dayquil), escitalopram oxalate (Lexapro) and paracetamol (Acetaminophen) for drug used for unknown indication.    On an unspecified date in 2022, the patient experienced covid-19 infection (dose number in series 2). The patient received non-company suspect: Paxlovid (form of admin and route of admin were not reported, batch number: unknown and expiry: unknown) dose was not reported, administered from 06-JUL-2022 for covid-19 treatment.  On 10-JUL-2022, Laboratory data included: COVID-19 virus test Negative. On 11-JUL-2022, Laboratory data included: COVID-19 virus test Negative. On the same day, patient took last dose of Paxlovid. On an unspecified date in JUL-2022, the patient reported everything tasted funny while taking Paxlovid (dose number in series 2). On 21-JUL-2022, patient felt sick and took home covid test and back to positive again, had confirmed covid-19 infection (dose number in series 2). Thus patient had confirmed clinical vaccination failure (dose number in series 1). On 21-JUL-2022, Laboratory data included: COVID-19 virus test Positive. On 22-JUL-2022, Laboratory data included: COVID-19 virus test Positive.  The action taken with covid-19 vaccine ad26.cov2.s, and elasomeran was not applicable and with Paxlovid was treatment discontinued. The patient was recovering from confirmed covid-19 infection, and the outcome of everything taste funny and confirmed clinical vaccination failure was not reported. This report was serious (Other Medically Important Condition). This report was associated with Product Quality Complaint: 90000245090; Sender's Comments: V0-20220806608-covid-19 vaccine ad26.cov2.s-Confirmed clinical Vaccination failure. The event(s) 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(s) than the drug. Specifically: SPECIAL SITUATIONS. Therefore, this event(s) is considered not related.