Report #2898000

Received May 27, 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: 35 yrs
State: OK
Recovered: Unknown
Vaccinated: May 18, 2026
Onset: May 18, 2026
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (ENGERIX-B)	GLAXOSMITHKLINE BIOLOGICALS	UNK	K4JH7	—

Symptoms (1)

Underdose

Symptom narrative

Pediatric dose to adult patient; Pediatric dose to 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 35-year-old female patient who received HBV (Engerix B pediatric) suspension for injection in pre-filled syringe (batch number K4JH7 with expiry date 09-JUL-2026) for prophylaxis. On 18-MAY-2026, the patient received Engerix B pediatric. On 18-MAY-2026, an unknown time after receiving Engerix B pediatric, the patient experienced adult use of a child product (Verbatim: Pediatric dose to adult patient) and underdose (Verbatim: Pediatric dose to 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. Additional Information: GSK Receipt Date: 22-MAY-2026 The pediatric dose was administered to adult patient.