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Report #2852140

Received Aug 1, 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
Age unknown
State
CO
Recovered
Unknown
Vaccinated
Jul 17, 2025
Onset
Jul 17, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
HEPAHEP A (VAQTA)MERCK & CO. INC.UNKY015910—

Symptoms (1)

Underdose

Symptom narrative

No additional AE; HCP reported that an adult patient received a pediatric dose of VAQTA.; HCP reported that an adult patient received a pediatric dose of VAQTA. No symptoms reported. No additional information provided. No additional AE/no PQC.; This spontaneous report was received from nurse regarding a 63-year-old patient of unknown gender. The patient's medical history, concurrent conditions, and concomitant therapies were not reported. On 17-JUL-2025, the adult patient was vaccinated with a pediatric dose of Hepatitis A Vaccine, Inactivated, 0.5 mL administered as prophylaxis (lot number reported as Y015910, which has been verified as valid, expiration date reported and validated as 06-FEB-2026) (vaccination scheme, route of administration, and anatomical site of injection were not reported) (Product administered to patient of inappropriate age, Underdose). No symptoms were reported in the patient.