Bruised arm; Itchy; Accidental administration of the Moderna COVID-19 Vaccine to a patient who is 15 years old; A spontaneous report ( was received from a pharmacist concerning a 15-year-old, female patient to who accidently received Moderna's COVID-19 vaccine (mRNA-1273) and experienced accidental administration of the Moderna COVID-19 vaccine to a patient who is 15 years old/product administered to patient of inappropriate age, itchy/pruritus and bruised arm/contusion. The patient's medical history was not provided. No concomitant product use was reported. On 25 Jan 2021, the patient received their first of two planned doses of mRNA-1273 (Lot number: 012L29A) in the right arm intramuscularly for prophylaxis of COVID-19 infection. On 25 Jan 2021, a 15-year-old female patient received an accidental dose of the Moderna COVID-19 vaccine and experienced an itchy arm. On 28 Jan 2021, the reporter noted the patient had a bruised arm. Treatment information was not provided. Action taken with mRNA-1273 in response to the events was unknown. The outcome of the event, accidental administration of the Moderna COVID-19 Vaccine to a patient who is 15 years old/product administered to patient of inappropriate age, was considered resolved on 25 Jan 2021. The outcome of the events, itchy and bruised arm, were considered unknown.; Reporter's Comments: This report refers to a case of Product administered to patient of inappropriate age for mRNA-1273, lot # 12L29A, with associated AEs. 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.