shortness of breath; worst diarrhea in her life; her left hand and left ankle were swollen; her left hand and left ankle were swollen; dehydrated; rash all over her face; muscle pain; nausea; headache; chills; This spontaneous case was reported by a consumer (subsequently medically confirmed) and describes the occurrence of DYSPNOEA (shortness of breath), DIARRHOEA (worst diarrhea in her life), PERIPHERAL SWELLING (her left hand and left ankle were swollen), JOINT SWELLING (her left hand and left ankle were swollen), DEHYDRATION (dehydrated), RASH (rash all over her face), MYALGIA (muscle pain), NAUSEA (nausea), HEADACHE (headache) and CHILLS (chills) in a 59-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 012A21A) for COVID-19 vaccination.     The patient's past medical history included No adverse event (Medical history was not reported.).   On 12-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 14-Apr-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 03-Apr-2021, the patient experienced DYSPNOEA (shortness of breath) (seriousness criterion hospitalization), DIARRHOEA (worst diarrhea in her life) (seriousness criterion hospitalization), PERIPHERAL SWELLING (her left hand and left ankle were swollen) (seriousness criterion hospitalization), JOINT SWELLING (her left hand and left ankle were swollen) (seriousness criterion hospitalization), DEHYDRATION (dehydrated) (seriousness criterion hospitalization), RASH (rash all over her face) (seriousness criterion hospitalization), MYALGIA (muscle pain) (seriousness criterion hospitalization), NAUSEA (nausea) (seriousness criterion hospitalization), HEADACHE (headache) (seriousness criterion hospitalization) and CHILLS (chills) (seriousness criterion hospitalization). The patient was hospitalized from 03-Apr-2021 to 04-Apr-2021 due to CHILLS, DEHYDRATION, DIARRHOEA, DYSPNOEA, HEADACHE, JOINT SWELLING, MYALGIA, NAUSEA, PERIPHERAL SWELLING and RASH. At the time of the report, DYSPNOEA (shortness of breath), DIARRHOEA (worst diarrhea in her life), PERIPHERAL SWELLING (her left hand and left ankle were swollen), JOINT SWELLING (her left hand and left ankle were swollen), DEHYDRATION (dehydrated), RASH (rash all over her face), MYALGIA (muscle pain), NAUSEA (nausea), HEADACHE (headache) and CHILLS (chills) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 03-Apr-2021, Blood pressure measurement: increased High.   No concomitant medications were reported. The patient reported that after her first shot, she was admitted to the hospital on  03-Apr-2021 and discharged on 04-Apr-2021.  She had shortness of breath, chills, headache, muscle pain, the worst diarrhea in her life, nausea, her left and and left ankle were swollen, her blood pressure went up, and she had a rash all over her face. The patient was dehydrated so they gave her fluids, liquid acetaminophen (TYLENOL) and something to make her not nauseous in the hospital.  Action taken with mRNA-1273 in response to the events was not applicable.   This case was linked to MOD-2021-080476 (Patient Link).