Report #2851294

Received Jul 25, 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: TX
Recovered: Unknown
Vaccinated: Jul 15, 2025
Onset: Jul 15, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (ENGERIX-B)	GLAXOSMITHKLINE BIOLOGICALS	UNK	A5DP7	—

Symptoms (1)

Underdose

Symptom narrative

underdose; Adult dose to pediatric patient; This non-serious case was reported by a nurse via call center representative and described the occurrence of underdose in a 19-year-old male patient who received HBV (Engerix B adult) (batch number A5DP7, expiry date 11-AUG-2027) for prophylaxis. On 15-JUL-2025, the patient received Engerix B adult 1 ml. On 15-JUL-2025, an unknown time after receiving Engerix B adult, the patient experienced underdose (Verbatim: underdose) and adult product administered to child (Verbatim: Adult dose to pediatric patient). The outcome of the underdose and adult product administered to child 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: 16-JUL-2025 The registered nurse gave an adult dose of Engerix-B (1 milliliter) to a 19 year old patient on 15th July 2025 which led to adult product administered to child and underdose.