Weakness in one side of body and both legs; Chest pain; Bruising; Weight loss; Feet started to swell and blister; Headache; Dizzy; Toes began to red, hot, swell symmetrical on both feet; Toes began to red, hot, swell symmetrical on both feet; Cool water running thru veins on legs; Chilblains; Tingling all over my body; Breast Stinging; Joint pain; Nausea; This spontaneous case was reported by a consumer and describes the occurrence of HEMIPARESIS (Weakness in one side of body and both legs) in a 35-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 013M20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     Concomitant products included VITAMINS NOS, PRENATAL VITAMINS [ASCORBIC ACID;BETACAROTENE;CALCIUM SULFATE;COLECALCIFEROL;CYANOCOBALAMIN;FERROUS FUMARATE;FOLIC ACID;NICOTINAMIDE;PYRIDOXINE HYDROCHLORIDE;RETINOL ACETATE;RIBOFLAVIN;THIAMINE MONONITRATE;TOCOPHERYL ACETATE;ZINC OXIDE], PROBIOTICS NOS, VITAMIN D NOS and DOCOSAHEXAENOIC ACID (DHA) for an unknown indication.    On 15-Feb-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 18-Feb-2021, the patient experienced CHILLBLAINS (Chilblains), PARAESTHESIA (Tingling all over my body), ERYTHEMA (Toes began to red, hot, swell symmetrical on both feet), SWELLING (Toes began to red, hot, swell symmetrical on both feet) and FEELING ABNORMAL (Cool water running thru veins on legs). On 20-Feb-2021, the patient experienced DIZZINESS (Dizzy) and HEADACHE (Headache). On an unknown date, the patient experienced HEMIPARESIS (Weakness in one side of body and both legs) (seriousness criterion medically significant), CHEST PAIN (Chest pain), BLISTER (Feet started to swell and blister), CONTUSION (Bruising), WEIGHT DECREASED (Weight loss), BREAST DISCOMFORT (Breast Stinging), ARTHRALGIA (Joint pain) and NAUSEA (Nausea). At the time of the report, HEMIPARESIS (Weakness in one side of body and both legs), CHEST PAIN (Chest pain), BLISTER (Feet started to swell and blister), ERYTHEMA (Toes began to red, hot, swell symmetrical on both feet), SWELLING (Toes began to red, hot, swell symmetrical on both feet), CONTUSION (Bruising), WEIGHT DECREASED (Weight loss), ARTHRALGIA (Joint pain) and NAUSEA (Nausea) outcome was unknown and CHILLBLAINS (Chilblains), PARAESTHESIA (Tingling all over my body), DIZZINESS (Dizzy), FEELING ABNORMAL (Cool water running thru veins on legs), BREAST DISCOMFORT (Breast Stinging) and HEADACHE (Headache) had not resolved.        The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       Treatment details included Tylenol.  Company Comment: Very limited information regarding this events has been provided at this time.  The events are assessed unlikely related to product.   Most recent FOLLOW-UP information incorporated above includes: On 10-May-2021: Follow-up received included patient initials corrected and additional adverse events including medically significant serious event of hemiparesis.; Sender's Comments: Very limited information regarding this events has been provided at this time.  The events are assessed unlikely related to product.