Report #2896028

Received May 9, 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: 63 yrs
State: —
Recovered: Unknown
Vaccinated: Apr 15, 2026
Onset: Apr 15, 2026
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (ENGERIX-B)	GLAXOSMITHKLINE BIOLOGICALS	UNK	9G523	—

Symptoms (1)

Underdose

Symptom narrative

an adult patient received a pediatric dose; an adult patient received a pediatric dose; 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 63-year-old female patient who received HBV (Engerix B pediatric) (batch number 9G523, expiry date 20-MAY-2027) for prophylaxis. On 15-APR-2026, the patient received Engerix B pediatric. On 15-APR-2026, an unknown time after receiving Engerix B pediatric, the patient experienced adult use of a child product (Verbatim: an adult patient received a pediatric dose) and underdose (Verbatim: an adult patient received a pediatric dose). 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.