She has labored breathing; Terrible cough; She is weak; Her blood pressure super low 93/42 something like that; She started throwing up; Had chills; She had no balance; Fever; Couldn't walk; Was unstable; Super tired; She stayed in bed for 4 days; This spontaneous case was reported by a consumer and describes the occurrence of VOMITING (She started throwing up), CHILLS (Had chills), BALANCE DISORDER (She had no balance), PYREXIA (Fever), GAIT DISTURBANCE (Couldn't walk), FEELING ABNORMAL (Was unstable), FATIGUE (Super tired), BED REST (She stayed in bed for 4 days), HYPOTENSION (Her blood pressure super low 93/42 something like that), DYSPNOEA (She has labored breathing), COUGH (Terrible cough) and ASTHENIA (She is weak) in a 56-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 006C21A and 040B21A) for COVID-19 vaccination.     No Medical History information was reported.   On 15-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 11-May-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) dosage was changed to 1 dosage form. On 11-May-2021, the patient experienced VOMITING (She started throwing up) (seriousness criterion hospitalization), CHILLS (Had chills) (seriousness criterion hospitalization), BALANCE DISORDER (She had no balance) (seriousness criterion hospitalization), PYREXIA (Fever) (seriousness criterion hospitalization), GAIT DISTURBANCE (Couldn't walk) (seriousness criterion hospitalization), FEELING ABNORMAL (Was unstable) (seriousness criterion hospitalization), FATIGUE (Super tired) (seriousness criterion hospitalization) and BED REST (She stayed in bed for 4 days) (seriousness criterion hospitalization). On 23-May-2021, the patient experienced HYPOTENSION (Her blood pressure super low 93/42 something like that) (seriousness criterion hospitalization). On 29-May-2021, the patient experienced DYSPNOEA (She has labored breathing) (seriousness criterion hospitalization), COUGH (Terrible cough) (seriousness criterion hospitalization) and ASTHENIA (She is weak) (seriousness criterion hospitalization). The patient was hospitalized on 24-May-2021 due to ASTHENIA, BALANCE DISORDER, BED REST, CHILLS, COUGH, DYSPNOEA, FATIGUE, GAIT DISTURBANCE, HYPOTENSION, PYREXIA and VOMITING. On 15-May-2021, BED REST (She stayed in bed for 4 days) had resolved. At the time of the report, VOMITING (She started throwing up), CHILLS (Had chills), BALANCE DISORDER (She had no balance), PYREXIA (Fever), GAIT DISTURBANCE (Couldn't walk), FEELING ABNORMAL (Was unstable), FATIGUE (Super tired), HYPOTENSION (Her blood pressure super low 93/42 something like that), DYSPNOEA (She has labored breathing), COUGH (Terrible cough) and ASTHENIA (She is weak) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 23-May-2021, Blood pressure measurement: 93/42 (Low) blood pressure super low 93/42. On 23-May-2021, Computerised tomogram: unknown (Inconclusive) Heart was fine. On 24-May-2021, Chest X-ray: unknown (normal) chest X-ray was clear. On an unknown date, Troponin: 0.09 (High) troponin level was 0.09 instead of 0.03.         Concomitant medications were not reported.  Treatment included Allegra 24 hour 100mg, Nasacort inhaler, Albuterol inhaler, Robitussin cough syrup, Propranolol 20 mg and Methimazole 10 mg   Company comment Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.; Sender's Comments: Based on the current available information and temporal association between the use of the product and the start date of the events, a causal relationship cannot be excluded.