No adverse event; the patient received by mistake the Moderna Pink Cap bivalent vaccine a 0.2ml dose. The patient came back to the pediatric office on July 25, 2023 and received by mistake a 0.25ml dose of Moderna Bivalent Blue Cap Vaccine.; The patient received his second Moderna Covid-19 dose in May 2023 and The patient came back to the pediatric office on July 25, 2023; This spontaneous case was reported by an other health care professional and describes the occurrence of INCORRECT DOSE ADMINISTERED (the patient received by mistake the Moderna Pink Cap bivalent vaccine a 0.2ml dose. The patient came back to the pediatric office on July 25, 2023 and received by mistake a 0.25ml dose of Moderna Bivalent Blue Cap Vaccine.), EXTRA DOSE ADMINISTERED (The patient received his second Moderna Covid-19 dose in May 2023 and The patient came back to the pediatric office on July 25, 2023) and NO ADVERSE EVENT (No adverse event) in a 17-month-old male patient who received mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) for COVID-19 prophylaxis.     No Medical History information was reported.    On 25-Jul-2023, the patient received third dose of mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (unknown route) .25 milliliter. On 25-Jul-2023, the patient experienced INCORRECT DOSE ADMINISTERED (the patient received by mistake the Moderna Pink Cap bivalent vaccine a 0.2ml dose. The patient came back to the pediatric office on July 25, 2023 and received by mistake a 0.25ml dose of Moderna Bivalent Blue Cap Vaccine.) and EXTRA DOSE ADMINISTERED (The patient received his second Moderna Covid-19 dose in May 2023 and The patient came back to the pediatric office on July 25, 2023). On an unknown date, the patient experienced NO ADVERSE EVENT (No adverse event). At the time of the report, INCORRECT DOSE ADMINISTERED (the patient received by mistake the Moderna Pink Cap bivalent vaccine a 0.2ml dose. The patient came back to the pediatric office on July 25, 2023 and received by mistake a 0.25ml dose of Moderna Bivalent Blue Cap Vaccine.), EXTRA DOSE ADMINISTERED (The patient received his second Moderna Covid-19 dose in May 2023 and The patient came back to the pediatric office on July 25, 2023) and NO ADVERSE EVENT (No adverse event) outcome was unknown.        For mRNA-1273 BIVALENT .222 (MODERNA COVID-19 VACCINE, BIVALENT (ORIGINAL AND OMICRON BA.4/BA.5)) (Unknown), the reporter considered NO ADVERSE EVENT (No adverse event) to be not related. No further causality assessments were provided for INCORRECT DOSE ADMINISTERED (the patient received by mistake the Moderna Pink Cap bivalent vaccine a 0.2ml dose. The patient came back to the pediatric office on July 25, 2023 and received by mistake a 0.25ml dose of Moderna Bivalent Blue Cap Vaccine.) and EXTRA DOSE ADMINISTERED (The patient received his second Moderna Covid-19 dose in May 2023 and The patient came back to the pediatric office on July 25, 2023).    No concomitant medication was reported.  Patient received Monovalent Moderna Covid-19 vaccine on March 21, 2023 lot number was not known The patient received his second Moderna Covid-19 dose in May 2023 the patient received by mistake the Moderna Pink Cap bivalent vaccine a 0.2ml dose. The patient came back to the pediatric office on July 25, 2023 and received by mistake a 0.25ml dose of Moderna Bivalent Blue Cap Vaccine. No treatment information was reported.