bad allergic reaction; Difficulty breathing; Numbness in the arm; Blood Pressure 160/60; Developed a rash from neck all the way to the right arm, Some rash on left arm; Weakness; Swelling in the arm; Nausea; This spontaneous case was reported by a consumer (subsequently medically confirmed) and describes the occurrence of HYPERSENSITIVITY (bad allergic reaction) in a 45-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 020B21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.    On 30-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 30-Mar-2021, the patient experienced HYPERSENSITIVITY (bad allergic reaction) (seriousness criterion medically significant), DYSPNOEA (Difficulty breathing), HYPOAESTHESIA (Numbness in the arm), BLOOD PRESSURE ABNORMAL (Blood Pressure 160/60), RASH (Developed a rash from neck all the way to the right arm, Some rash on left arm), FATIGUE (Weakness), VACCINATION SITE SWELLING (Swelling in the arm) and NAUSEA (Nausea). At the time of the report, HYPERSENSITIVITY (bad allergic reaction), DYSPNOEA (Difficulty breathing), HYPOAESTHESIA (Numbness in the arm), BLOOD PRESSURE ABNORMAL (Blood Pressure 160/60), RASH (Developed a rash from neck all the way to the right arm, Some rash on left arm), FATIGUE (Weakness), VACCINATION SITE SWELLING (Swelling in the arm) and NAUSEA (Nausea) outcome was unknown.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): On 30-Mar-2021, Blood pressure measurement: 160/60 (Inconclusive) 160/60.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.       The patient's past medical history included No adverse event (No reported medical history).    On 30-Mar-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 30-Mar-2021, the patient experienced RASH (Developed a rash from neck all the way to the right arm, Some rash on left arm), DYSPNOEA (Difficulty breathing), NAUSEA (Nausea), PERIPHERAL SWELLING (Swelling in the arm), HYPOAESTHESIA (Numbness in the arm), BLOOD PRESSURE ABNORMAL (Blood Pressure 160/60), ASTHENIA (Weakness) and HYPERSENSITIVITY (bad allergic reaction) (seriousness criterion hospitalization). At the time of the report, RASH (Developed a rash from neck all the way to the right arm, Some rash on left arm), DYSPNOEA (Difficulty breathing), NAUSEA (Nausea), PERIPHERAL SWELLING (Swelling in the arm), HYPOAESTHESIA (Numbness in the arm), BLOOD PRESSURE ABNORMAL (Blood Pressure 160/60), ASTHENIA (Weakness) and HYPERSENSITIVITY (bad allergic reaction) outcome was unknown. Not Provided    The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.      On 30-Mar-2021, the patient taken in an ambulance to the hospital, given Benadryl (diphenhydramine hydrochloride) and oxygen treatment, then was taken to the Emergency Room and was treated with steroid injection.  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.  Most recent FOLLOW-UP information incorporated above includes: On 22-Apr-2021: vaccine lot number.   Most recent FOLLOW-UP information incorporated above includes: On 22-Apr-2021: Lot number provided; 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.