Report #2884637

Received Feb 6, 2026

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: PA
Recovered: Unknown
Vaccinated: —
Onset: —
Days to onset: —
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEPA	HEP A (HAVRIX)	GLAXOSMITHKLINE BIOLOGICALS	UNK	Z27PB	—

Symptoms (1)

Incorrect dose administered

Symptom narrative

Inappropriate dose; Overdose; This non-serious case was reported by a nurse via call center representative and described the occurrence of adult product administered to child in a 1-year-old female patient who received HAV (Havrix adult) (batch number Z27PB, expiry date 27-AUG-2026) for prophylaxis. On an unknown date, the patient received Havrix adult. On an unknown date, an unknown time after receiving Havrix adult, the patient experienced adult product administered to child (Verbatim: Inappropriate dose) and overdose (Verbatim: Overdose). The outcome of the adult product administered to child and overdose were not applicable. This report is made by GSK without prejudice and does not imply any admission or liability for the incident or its consequences. Additional Information: GSK Receipt Date: 05-FEB-2026 The nurse reported that they gave a child an adult dose of Hepatitis A vaccine and confirmed the brand name was Havrix. The vaccine administration facility was the same as primary reporter.