Received Sep 5, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| HPV9 | HPV (GARDASIL 9) | MERCK & CO. INC. | UNK | — | — |
No additional adverse events were reported; A medical assistant called and reported that a male 5 year old twin and a female 5 year old twin both received a dose of GARDASIL 9 inadvertently.; This spontaneous report was received from an Other health professional (Medical Assistant) and refers to a 5-year-old twin male patient. The patient's medical history, concurrent conditions, and concomitant therapies were not reported. On an unknown date, the patient was inadvertently vaccinated with Human Papillomavirus 9-valent Vaccine, Recombinant (GARDASIL 9), Suspension for injection (exact dose, dose number, route of administration, anatomical location, lot # and expiration date were not reported) for prophylaxis (Product administered to patient of inappropriate age). No additional adverse events were reported (no adverse event). This is one of two reports received from the same reporter (refers to other twin patient). Additional information is not expected.