Injection site arm weak; The arm turned red, itching, burning, and hot to the touch.; Numbness in fingers/ left thumb is numb; more than 35 days between Covid-19 vaccines; injection site is sensitive to the touch; The arm turned red, itching, burning, and hot to the touch; The arm turned red, itching, burning, and hot to the touch; The arm turned red, itching, burning, and hot to the touch.; Injection site still has a lump; Rash on injection site arm; This spontaneous case was reported by a consumer and describes the occurrence of VACCINATION COMPLICATION (Injection site arm weak), VACCINATION SITE WARMTH (The arm turned red, itching, burning, and hot to the touch.), HYPOAESTHESIA (Numbness in fingers/ left thumb is numb), VACCINATION SITE DYSAESTHESIA (injection site is sensitive to the touch   ) and VACCINATION SITE RASH (Rash on injection site arm   ) in a 39-year-old female patient who received mRNA-1273 (Moderna COVID-19 Vaccine) (batch nos. 039A21A and 007C21A) for COVID-19 vaccination. The occurrence of additional non-serious events is detailed below.     No Medical History information was reported.   On 27-Apr-2021, the patient received first dose of mRNA-1273 (Moderna COVID-19 Vaccine) (Intramuscular) 1 dosage form. On 03-Jun-2021, received second dose of mRNA-1273 (Moderna COVID-19 Vaccine) (unknown route) dosage was changed to 1 dosage form. On 04-Jun-2021,  after starting mRNA-1273 (Moderna COVID-19 Vaccine), the patient experienced VACCINATION SITE RASH (Rash on injection site arm   ). On an unknown date, the patient experienced VACCINATION COMPLICATION (Injection site arm weak), VACCINATION SITE WARMTH (The arm turned red, itching, burning, and hot to the touch.), HYPOAESTHESIA (Numbness in fingers/ left thumb is numb), VACCINATION SITE DYSAESTHESIA (injection site is sensitive to the touch   ), VACCINATION SITE ERYTHEMA (The arm turned red, itching, burning, and hot to the touch), VACCINATION SITE PRURITUS (The arm turned red, itching, burning, and hot to the touch), VACCINATION SITE PAIN (The arm turned red, itching, burning, and hot to the touch.), VACCINATION SITE LYMPHADENOPATHY (Injection site still has a lump) and INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (more than 35 days between Covid-19 vaccines). At the time of the report, VACCINATION COMPLICATION (Injection site arm weak), VACCINATION SITE WARMTH (The arm turned red, itching, burning, and hot to the touch.), HYPOAESTHESIA (Numbness in fingers/ left thumb is numb), VACCINATION SITE DYSAESTHESIA (injection site is sensitive to the touch   ), VACCINATION SITE RASH (Rash on injection site arm   ), VACCINATION SITE ERYTHEMA (The arm turned red, itching, burning, and hot to the touch), VACCINATION SITE PRURITUS (The arm turned red, itching, burning, and hot to the touch), VACCINATION SITE PAIN (The arm turned red, itching, burning, and hot to the touch.) and VACCINATION SITE LYMPHADENOPATHY (Injection site still has a lump) outcome was unknown and INAPPROPRIATE SCHEDULE OF PRODUCT ADMINISTRATION (more than 35 days between Covid-19 vaccines) had resolved.            Concomitant medication includes steroids and antibiotics.  No treatment medication reported.  Patient did not have an ultrasound done to rule out a blood clot at the injection site or at the arm.   This case was linked to MOD-2021-288994 (Patient Link).; 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.  Further information is not expected.