irregular heart beat; itchy rash; itch; rash across my chest.  Rash all over my trunk and up and down my leg/rash went from her neck to up side of face and back; I had large welts/hives/hives on trunk of my body and back of legs; night sweats/Heavy, heavy night sweat; This spontaneous case was reported by a pharmacist and describes the occurrence of URTICARIA (I had large welts/hives/hives on trunk of my body and back of legs), NIGHT SWEATS (night sweats/Heavy, heavy night sweat), PALPITATIONS (irregular heart beat), RASH PRURITIC (itchy rash) and RASH (rash across my chest.  Rash all over my trunk and up and down my leg/rash went from her neck to up side of face and back) in a 79-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch no. 038K20A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     The patient's past medical history included Cesarean section and Gallbladder removal. Concurrent medical conditions included Blood pressure (Controlled with medication) since 1996 and Drug hypersensitivity (Allergic to Sulphur drugs). Concomitant products included IRBESARTAN for Blood pressure, VITAMIN B12 NOS and ASCORBIC ACID, CALCIUM, MINERALS NOS, RETINOL, TOCOPHERYL ACETATE, VITAMIN B NOS, VITAMINS NOS, ZINC (CENTRUM SILVER [ASCORBIC ACID;CALCIUM;MINERALS NOS;RETINOL;TOCOPHERYL ACETATE;VITAMIN B NOS;VITAMINS NOS;ZINC]) for an unknown indication.    On 29-Jan-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 05-Feb-2021, the patient experienced URTICARIA (I had large welts/hives/hives on trunk of my body and back of legs). 05-Feb-2021, the patient experienced NIGHT SWEATS (night sweats/Heavy, heavy night sweat) and RASH (rash across my chest.  Rash all over my trunk and up and down my leg/rash went from her neck to up side of face and back). On an unknown date, the patient experienced PALPITATIONS (irregular heart beat), RASH PRURITIC (itchy rash) and PRURITUS (itch). The patient was treated with METHYLPREDNISOLONE ongoing since an unknown date at a dose of 400 milligram; DIPHENHYDRAMINE HYDROCHLORIDE (BENADRYL [DIPHENHYDRAMINE HYDROCHLORIDE]) ongoing since an unknown date at a dose of 1 dosage form and PREDNISONE ongoing since an unknown date for Hives, at a dose of 4 MG. At the time of the report, URTICARIA (I had large welts/hives/hives on trunk of my body and back of legs), NIGHT SWEATS (night sweats/Heavy, heavy night sweat), PALPITATIONS (irregular heart beat), RASH PRURITIC (itchy rash) and PRURITUS (itch) outcome was unknown and RASH (rash across my chest.  Rash all over my trunk and up and down my leg/rash went from her neck to up side of face and back) had resolved.      DIAGNOSTIC RESULTS (normal ranges are provided in parenthesis if available): In 2021, White blood cell count: elevated wbc (High) elevated WBC.     The action taken with mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) was unknown.   For mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular), the reporter did not provide any causality assessments.   This case was linked to MOD-2021-029584 (Patient Link).   Most recent FOLLOW-UP information incorporated above includes: On 19-Jul-2021: Significant follow up :- AE update