stroke 1 week after the booster dose; there was some atrial fibrillation; bleeding in the back of the brain; walking with a walker; has dexterity issues; Has speech issues per speech pathologist; This spontaneous case was reported by a consumer and describes the occurrence of CEREBROVASCULAR ACCIDENT (stroke 1 week after the booster dose), ATRIAL FIBRILLATION (there was some atrial fibrillation) and CEREBRAL HAEMORRHAGE (bleeding in the back of the brain) in a 60-year-old male patient who received mRNA-1273 (Moderna COVID-19 Vaccine) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.    In November 2021, the patient received third dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) 1 dosage form. In November 2021, the patient experienced CEREBRAL HAEMORRHAGE (bleeding in the back of the brain) (seriousness criteria hospitalization and medically significant). On 21-Nov-2021, the patient experienced CEREBROVASCULAR ACCIDENT (stroke 1 week after the booster dose) (seriousness criteria hospitalization and medically significant) and ATRIAL FIBRILLATION (there was some atrial fibrillation) (seriousness criteria hospitalization and medically significant). On an unknown date, the patient experienced WALKING AID USER (walking with a walker), FINE MOTOR SKILL DYSFUNCTION (has dexterity issues) and SPEECH DISORDER (Has speech issues per speech pathologist). The patient was hospitalized on 21-Nov-2021 due to ATRIAL FIBRILLATION and CEREBROVASCULAR ACCIDENT, and then on 28-Nov-2021 due to CEREBRAL HAEMORRHAGE. The patient was treated with APIXABAN (ELIQUIS) for Adverse event, at an unspecified dose and frequency; Physical therapy for Cerebrovascular accident and Physical therapy for Cerebral haemorrhage. At the time of the report, CEREBROVASCULAR ACCIDENT (stroke 1 week after the booster dose), ATRIAL FIBRILLATION (there was some atrial fibrillation), CEREBRAL HAEMORRHAGE (bleeding in the back of the brain), WALKING AID USER (walking with a walker), FINE MOTOR SKILL DYSFUNCTION (has dexterity issues) and SPEECH DISORDER (Has speech issues per speech pathologist) was resolving.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 21-Nov-2021, Computerised tomogram: normal (normal) did not find anything. On 28-Nov-2021, Computerised tomogram: normal (normal) did not find anything. On 28-Nov-2021, Magnetic resonance imaging: abnormal (abnormal) bleeding in the back of the brain..         No concomitant medications were reported.  On 15-Nov-2021 (assumed date), Reporter's brother experienced stroke 1 week after the booster dose The symptoms were loss of power in right arm and leg, nauseous, blurred vision, could not sit up for 2 days without throwing up, felt like he got off the carnival ride, spinning. The patient was hospitalized twice.   First episode was on 21-Nov-2021, there was some atrial fibrillation, so ablation was performed on him. The second episode was on 28-Nov-2021 (the day after thanksgiving), the patient had the same symptoms plus his right side of tongue. MRI scan found bleeding in the back of the brain.   It was reported that now the patient was improved. He was receiving physical therapy, walking with a walker and has dexterity issues. Has speech issues per speech pathologist. Since the event, he has started on Eliquis and a beta blocker. The patient has no past medical histories and no medications. The reporter did not have date of 1st and 2nd dose.  This case concerns a 64-year-old male patient with no medical history, who experienced the unexpected serious adverse event of special interest Cerebral Hemorrhage, Cerebrovascular Accident, and Atrial Fibrillations, the events was reported as medically significant and led to the hospitalization of the patient. The events of occurred approximately the same month after receiving the second dose of mRNA-1273 Vaccine. Patient was hospitalized due to the events, MRI was done revealing bleeding on the posterior part of the brain, patient was treated and eventually discharge and underwent therapies and treated with home medications. No other clinical or treatment details were given. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report.; Sender's Comments: This case concerns a 64-year-old male patient with no medical history, who experienced the unexpected serious adverse event of special interest Cerebral Hemorrhage, Cerebrovascular Accident, and Atrial Fibrillations, the events was reported as medically significant and led to the hospitalization of the patient. The events of occurred approximately the same month after receiving the second dose of mRNA-1273 Vaccine. Patient was hospitalized due to the events, MRI was done revealing bleeding on the posterior part of the brain, patient was treated and eventually discharge and underwent therapies and treated with home medications. No other clinical or treatment details were given. The benefit-risk relationship of mRNA-1273 Vaccine is not affected by this report.