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Report #2856746

Received Sep 4, 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
Female
Age
Age unknown
State
CA
Recovered
Unknown
Vaccinated
Aug 4, 2025
Onset
Aug 4, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
HEPHEP B (ENGERIX-B)GLAXOSMITHKLINE BIOLOGICALS1N733B—

Symptoms (1)

Wrong product administered

Symptom narrative

a patient got a dose of Engerix-B yesterday instead of Twinrix as scheduled.; This non-serious case was reported by a nurse via call center representative and described the occurrence of wrong vaccine administered in a 57-year-old female patient who received HBV (Engerix B) (batch number N733B, expiry date 27-AUG-2027) for prophylaxis. Co-suspect products included HAB (Twinrix) for prophylaxis. Concomitant products included HEPATITIS A VACCINE INACT;HEPATITIS B VACCINE RHBSAG (YEAST) (TWINRIX). On 04-AUG-2025, the patient received the 1st dose of Engerix B. The patient did not receive the 2nd dose of Twinrix. On 04-AUG-2025, an unknown time after receiving Engerix B, the patient experienced wrong vaccine administered (Verbatim: a patient got a dose of Engerix-B yesterday instead of Twinrix as scheduled.). The outcome of the wrong vaccine administered 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: 05-AUG-2025 The reporter called to report that a patient got a dose of Engerix-B the day before reporting instead of Twinrix as scheduled, which led to wrong vaccine administered. Healthcare professional wanted to know how to proceed for completing the series. 1st Twinrix vaccine was administered on 3rd July 2025.

Other medications

TWINRIX