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Report #2854803

Received Aug 20, 2025

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex
Female
Age
Age unknown
State
CT
Recovered
Unknown
Vaccinated
Mar 19, 2024
Onset
Aug 7, 2025
Days to onset
506
Hospital days
—

Vaccines (4)

TypeNameManufacturerDoseLotRoute / Site
HPV9HPV (GARDASIL 9)MERCK & CO. INC.3——
HPV9HPV (GARDASIL 9)MERCK & CO. INC.1——
HPV9HPV (GARDASIL 9)MERCK & CO. INC.2——
HPV9HPV (GARDASIL 9)MERCK & CO. INC.4——

Symptoms (2)

Extra dose administeredNo adverse event

Symptom narrative

No additional AE; HCP called and reported inadvertent administration of a total of 4 doses of GARDASIL 9. Adult patient received a dose of GARDASIL 9 on 19SEP2024, 06NOV2024, 19MAR2025, and 07AUG2025.; This spontaneous report was received from a Physician on 07-Aug-2025 and refers to a 37 year old female patient. The patient's medical history was not reported. The patient's concurrent conditions were not reported. Concomitant therapies were not reported. On 19-Sep-2024,06-Nov-2024, and 19-Mar-2025, the patient was vaccinated with a first, second, and third dose of Human Papillomavirus 9-valent Vaccine, Recombinant (GARDASIL9),(dose, indication, expiration date, and lot # were not reported) for prophylaxis And 07-Aug-2025, the patient was inadvertently vaccinated with a fourth dose of Human Papillomavirus 9-valent Vaccine, Recombinant (GARDASIL9) (dose, indication, expiration date, and lot # were not reported) for prophylaxis (Extra dose administered). No additional adverse event or PQC reported.