was just like delirious; he didn't know where he was/he didn't know if it was 6:30 in the morning or night; Caller stated he had a balance problem; for 2 or 3 days he was just tired/fatigued/really fatigued for 2 or 3 days; had a fever of 101.1°F for a short time; This spontaneous case was reported by a consumer and describes the occurrence of DELIRIUM (was just like delirious), CONFUSIONAL STATE (he didn't know where he was/he didn't know if it was 6:30 in the morning or night), BALANCE DISORDER (Caller stated he had a balance problem), FATIGUE (for 2 or 3 days he was just tired/fatigued/really fatigued for 2 or 3 days) and PYREXIA (had a fever of 101.1°F for a short time) in an 88-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination.     No Medical History information was reported.   In 2021, the patient received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On an unknown date, received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On an unknown date, the patient experienced DELIRIUM (was just like delirious), CONFUSIONAL STATE (he didn't know where he was/he didn't know if it was 6:30 in the morning or night), BALANCE DISORDER (Caller stated he had a balance problem), FATIGUE (for 2 or 3 days he was just tired/fatigued/really fatigued for 2 or 3 days) and PYREXIA (had a fever of 101.1°F for a short time). The patient was treated with PARACETAMOL (TYLENOL [PARACETAMOL]) in 2021 for Fever, at an unspecified dose and frequency. At the time of the report, DELIRIUM (was just like delirious), CONFUSIONAL STATE (he didn't know where he was/he didn't know if it was 6:30 in the morning or night), BALANCE DISORDER (Caller stated he had a balance problem), FATIGUE (for 2 or 3 days he was just tired/fatigued/really fatigued for 2 or 3 days) and PYREXIA (had a fever of 101.1°F for a short time) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2021, Body temperature: 101.1 (High) Fever of 101.1°F.   Concomitant product use was not provided by the reporter.   Reported that Patient was no longer experiencing those symptoms,those problems that he had lasted only one night, but for 2 or 3 days he was just tired, fatigued, really fatigued for 2 or 3 days.  The dose was given on Tuesday a week or two weeks ago, he didn't remember the exact time, and he couldn't find his vaccination card.  Company Comment: This cases concerns a 88 year old male with no reported medical history, who experienced non-serious unexpected events of Delirium, Confusional state, Balalnce  disorder  and expected events of fatigue and pyrexia. These events occurred on an unknown date with the 1st  and 2nd dose of mRNA-1273 vaccine  (Moderna Covid 19 Vaccine). The re-challenge for this case is unknown since there are no details re the other doses found in the report., event have no  exact dates . The age of the patient may be considered as a confounder for this case ( elderly people are more susceptible to sensorial  changes if given medications, that may be brought about by the aging brain and possible  hormomal imbalance as well ).  The benefit -risk relationship of mRNA-1273 Vaccine ( Moderna Covid 19 Vaccine ) is not affected by this report.   This case was linked to MOD-2021-293267 (Patient Link).; Sender's Comments: This cases concerns a 88 year old male with no reported medical history, who experienced non-serious unexpected events of Delirium, Confusional state, Balalnce  disorder  and expected events of fatigue and pyrexia. These events occurred on an unknown date with the 1st  and 2nd dose of mRNA-1273 vaccine  (Moderna Covid 19 Vaccine). The re-challenge for this case is unknown since there are no details re the other doses found in the report., event have no  exact dates . The age of the patient may be considered as a confounder for this case ( elderly people are more susceptible to sensorial  changes if given medications, that may be brought about by the aging brain and possible  hormomal imbalance as well ).  The benefit -risk relationship of mRNA-1273 Vaccine ( Moderna Covid 19 Vaccine ) is not affected by this report.