Dose administered after improper storage and handling (i.e. temperature excursion); Dose administered after improper storage and handling (i.e. temperature excursion); No adverse event; A patient was inadvertently administered an expired vaccine on March 14,2023.; Vaccine administered: Moderna 12 plus Monovalent  to Child; This spontaneous case was reported by an other health care professional and describes the occurrence of EXPIRED PRODUCT ADMINISTERED (A patient was inadvertently administered an expired vaccine on March 14,2023.), WRONG PRODUCT ADMINISTERED (Vaccine administered: Moderna 12 plus Monovalent  to Child), PRODUCT TEMPERATURE EXCURSION ISSUE (Dose administered after improper storage and handling (i.e. temperature excursion)), POOR QUALITY PRODUCT ADMINISTERED (Dose administered after improper storage and handling (i.e. temperature excursion)) and NO ADVERSE EVENT (No adverse event) in a child patient of an unknown gender who received mRNA-1273 (Spikevax) (batch no. 071B22A) for COVID-19 prophylaxis.     No Medical History information was reported.    On 14-Mar-2023, the patient received dose of mRNA-1273 (Spikevax) (unknown route) 1 dosage form. On 14-Mar-2023, the patient experienced EXPIRED PRODUCT ADMINISTERED (A patient was inadvertently administered an expired vaccine on March 14,2023.) and WRONG PRODUCT ADMINISTERED (Vaccine administered: Moderna 12 plus Monovalent  to Child). On an unknown date, the patient experienced PRODUCT TEMPERATURE EXCURSION ISSUE (Dose administered after improper storage and handling (i.e. temperature excursion)), POOR QUALITY PRODUCT ADMINISTERED (Dose administered after improper storage and handling (i.e. temperature excursion)) and NO ADVERSE EVENT (No adverse event). At the time of the report, EXPIRED PRODUCT ADMINISTERED (A patient was inadvertently administered an expired vaccine on March 14,2023.), WRONG PRODUCT ADMINISTERED (Vaccine administered: Moderna 12 plus Monovalent  to Child), PRODUCT TEMPERATURE EXCURSION ISSUE (Dose administered after improper storage and handling (i.e. temperature excursion)), POOR QUALITY PRODUCT ADMINISTERED (Dose administered after improper storage and handling (i.e. temperature excursion)) and NO ADVERSE EVENT (No adverse event) outcome was unknown.        For mRNA-1273 (Spikevax) (Unknown), the reporter considered NO ADVERSE EVENT (No adverse event) to be not related. No further causality assessments were provided for EXPIRED PRODUCT ADMINISTERED (A patient was inadvertently administered an expired vaccine on March 14,2023.), WRONG PRODUCT ADMINISTERED (Vaccine administered: Moderna 12 plus Monovalent  to Child), PRODUCT TEMPERATURE EXCURSION ISSUE (Dose administered after improper storage and handling (i.e. temperature excursion)) and POOR QUALITY PRODUCT ADMINISTERED (Dose administered after improper storage and handling (i.e. temperature excursion)).    No concomitant medications was provided. Patient was inadvertently administered an expired vaccine on March 14,2023. The Vaccine administered was Moderna 12 plus Monovalent (Red Cap). No treatment medications was provided.   Most recent FOLLOW-UP information incorporated above includes: On 14-Mar-2023: No new information was added.