SUSPECTED CLINICAL VACCINATION FAILURE; TOLD IT WAS DIFFERENT. BODY WAS FIGHTING SOMETHING AND WINNING; COVID-19 INFECTION; This solicited report received from a patient via : a patient of unspecified age, sex, race and ethnic origin.  The patient's height, and weight were not reported. The patient's concurrent conditions included: bad allergies, and other pre-existing medical conditions included: Patient had no other symptoms. The patient received covid-19 vaccine ad26.cov2.s (suspension for injection, route of administration, not reported, batch number: unknown, expiry: unknown) dose, start therapy date were not reported (dose number in series was 1), 01 in total, for prophylactic vaccination. The batch number was not reported. Per procedure, no follow-up will be requested for this case. On DEC-2021, a couple nights ago the patient experienced runny nose and muscle was little achy last night (29-DEC-2021) (covid-19 infection). On 30-DEC-2021, the patient told it was different body was fighting something and winning, On the same day, laboratory data included: severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) test resulted not reported (suspected clinical vaccination failure) (dose number in series was 1). The patient took some medicine for runny nose and it was gone the next day. Patients assumed that muscle ache was the gains. Patient told that missing the gym for a week will be the worst. The action taken with covid-19 vaccine ad26.cov2.s was not applicable. On an unspecified date, the patient received additional non-company suspect vaccine included: mrna 1273 (form of administration, route of administration not reported, batch number: unknown, expiry: unknown), dose, start therapy date were not reported, (dose number in series was 2), for prophylactic vaccination. No concomitant medications were reported. On DEC-2021, a couple nights ago the patient experienced runny nose and muscle was little achy last night (29-DEC-2021) (covid-19 infection). On 30-DEC-2021, the patient experienced told it was different body was fighting something and winning (dose number in series was 2). The action taken with mrna 1273 was not applicable. The outcome of the told it was different and body was fighting something and winning, covid-19 infection and suspected clinical vaccination failure was not reported. This report was serious (Other Medically Important Condition). The reporter provided no causality assessment. Company causality between covid-19 vaccine ad26.cov2.s, and suspected clinical vaccination failure, told it was different body was fighting something and winning, and covid-19 infection was not related.   The suspected product quality complaint has been confirmed to be voided (did not meet PQC criteria as records 90000209579 and 90000209606 are identified as duplicate reports. The reporter indicates in both records that they contracted Covid-19 after vaccination as determined via rapid antigen test rather than polymerase chain reaction test. There is no product quality issue described as this report does not include dates of vaccination, testing or symptoms experienced and therefore does not meet the definition of lack of effect for the vaccine) based on the RA evaluation/investigation performed.; Sender's Comments: V0: 20211266497-Covid-19 vaccine ad26.cov2.s-suspected clinical vaccination failure. This event(s) is considered not related. 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