Report #2871856

Received Nov 10, 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: Male
Age: Age unknown
State: WV
Recovered: Unknown
Vaccinated: Oct 21, 2025
Onset: Oct 21, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (ENGERIX-B)	GLAXOSMITHKLINE BIOLOGICALS	UNK	3N2ND	—

Symptoms (1)

Underdose

Symptom narrative

maladministration of a pediatric dose to an adult patient; maladministration of a pediatric dose to an adult patient; This non-serious case was reported by a other health professional via call center representative and described the occurrence of adult use of a child product in a 55-year-old male patient who received HBV (Engerix B pediatric) (batch number 3N2ND, expiry date 16-JAN-2027) for prophylaxis. On 21-OCT-2025, the patient received Engerix B pediatric. On 21-OCT-2025, an unknown time after receiving Engerix B pediatric, the patient experienced adult use of a child product (Verbatim: maladministration of a pediatric dose to an adult patient) and underdose (Verbatim: maladministration of a pediatric dose to an adult patient). The outcome of the adult use of a child product and underdose 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.