Report #2870334

Received Nov 3, 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: Unknown
Age: Age unknown
State: CT
Recovered: Unknown
Vaccinated: —
Onset: —
Days to onset: —
Hospital days: —

Vaccines (1)

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

Symptoms (1)

Product storage error

Symptom narrative

accidental improper storage; This non-serious case was reported by a pharmacist via call center representative and described the occurrence of incorrect storage of drug in a patient who received HBV (Engerix B) for prophylaxis. On an unknown date, the patient received Engerix B. On an unknown date, an unknown time after receiving Engerix B, the patient experienced incorrect storage of drug (Verbatim: accidental improper storage). The outcome of the incorrect storage of drug was 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: 20-OCT-2025 Pharmacist reports Engerix-B was accidentally left out on top of refrigerator for 72 hours at room temperature (unknown actual temperature). No lot or expiration date shared. No mention of patient receiving this product.