Paralysed; Seizure; Stroke; Atrial fibrillations; Heart Palpitaion; Breathing Became shallow; Brain fog; Swelling in his feet; Uncontrollable spasms; Migrains; Tinnitus; Tremors; Overall body pain; Dizziness; Rash throughout Body; This spontaneous case was reported by a consumer and describes the occurrence of PARALYSIS (Paralysed), SEIZURE (Seizure), CEREBROVASCULAR ACCIDENT (Stroke), ATRIAL FIBRILLATION (Atrial fibrillations), PALPITATIONS (Heart Palpitaion), HYPOPNOEA (Breathing Became shallow), CONFUSIONAL STATE (Brain fog), PERIPHERAL SWELLING (Swelling in his feet), MUSCLE SPASMS (Uncontrollable spasms), MIGRAINE (Migrains), TINNITUS (Tinnitus), TREMOR (Tremors), PAIN (Overall body pain), DIZZINESS (Dizziness) and RASH (Rash throughout Body) in a male patient of an unknown age who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 immunization.     No Medical History information was reported.    In May 2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. On 25-May-2021, the patient experienced PARALYSIS (Paralysed) (seriousness criteria hospitalization and medically significant), SEIZURE (Seizure) (seriousness criteria hospitalization and medically significant), CEREBROVASCULAR ACCIDENT (Stroke) (seriousness criteria hospitalization and medically significant), ATRIAL FIBRILLATION (Atrial fibrillations) (seriousness criteria hospitalization and medically significant), PALPITATIONS (Heart Palpitaion) (seriousness criterion hospitalization), HYPOPNOEA (Breathing Became shallow) (seriousness criterion hospitalization), CONFUSIONAL STATE (Brain fog) (seriousness criterion hospitalization), PERIPHERAL SWELLING (Swelling in his feet) (seriousness criterion medically significant), MUSCLE SPASMS (Uncontrollable spasms) (seriousness criterion medically significant), MIGRAINE (Migrains) (seriousness criterion medically significant), TINNITUS (Tinnitus) (seriousness criterion medically significant), TREMOR (Tremors) (seriousness criterion medically significant), PAIN (Overall body pain) (seriousness criterion medically significant), DIZZINESS (Dizziness) (seriousness criterion medically significant) and RASH (Rash throughout Body) (seriousness criterion medically significant). At the time of the report, PARALYSIS (Paralysed), SEIZURE (Seizure), CEREBROVASCULAR ACCIDENT (Stroke), ATRIAL FIBRILLATION (Atrial fibrillations), PALPITATIONS (Heart Palpitaion), HYPOPNOEA (Breathing Became shallow), CONFUSIONAL STATE (Brain fog), PERIPHERAL SWELLING (Swelling in his feet), MUSCLE SPASMS (Uncontrollable spasms), MIGRAINE (Migrains), TINNITUS (Tinnitus), TREMOR (Tremors), PAIN (Overall body pain), DIZZINESS (Dizziness) and RASH (Rash throughout Body) outcome was unknown.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Unknown) was unknown.       Concomitant medications were not reported . Treatment information was not provided.  Very limited information regarding this event/s has been provided at this time.  Further information has been requested.; Sender's Comments: Very limited information regarding this event/s has been provided at this time.  Further information has been requested.