Report #2856933

Received Sep 5, 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: Unknown
Age: 17 yrs
State: PA
Recovered: Unknown
Vaccinated: Aug 25, 2025
Onset: Aug 25, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEPA	HEP A (VAQTA)	MERCK & CO. INC.	UNK	Y017625	—

Symptoms (1)

Incorrect dose administered

Symptom narrative

no patient symptoms have been reported; an adult dose of VAQTA was inadvertently administered to a pediatric patient; an adult dose of VAQTA was inadvertently administered to a pediatric patient; This spontaneous report was received from a nurse regarding a 17-year-old patient of unknown gender. The patient's medical history, concurrent conditions, and concomitant therapies were not reported. On 25-AUG-2025, the pediatric patient was inadvertently vaccinated with an adult dose of Hepatitis A Vaccine, Inactivated (VAQTA) 50/1.0 U/ml Injection, 1 dosage form administered as prophylaxis (lot number reported as Y017625, which has been verified as valid, expiration date reported and validated 11-JUL-2026) (Accidental overdose, Product administered to patient of inappropriate age). No symptoms had been reported in the patient. This is 1 of 2 reports from the same reporter.