Report #2845283

Received Jun 17, 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: 57 yrs
State: FL
Recovered: Unknown
Vaccinated: Jun 16, 2025
Onset: Jun 16, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (ENGERIX-B)	GLAXOSMITHKLINE BIOLOGICALS	2	PE9G5	IM / LA

Symptoms (2)

Expired product administeredNo adverse event

Symptom narrative

Patient was accidentally administered an expired dose of Engerix-B (29 days after listed expiration). Patient was notified immediately of event and advised to let us know of any issues. Pharmacy contacted CDC and GSK Pharmaceuticals for guidance. Per CDC, as a non-live vaccine it is recommended to repeat the dose as soon as possible as it is considered invalid and patient may then resume series as scheduled. GSK pharmaceuticals stated they have not evaluated the immunogenicity or safety following an administration of an expired vaccine and does not make any recommendations regarding revaccination. However, results from in-house analytical potency testing have shown that the vaccine remains within the approved specifications for up to 30 days following the expiration date. Patient was informed of these findings and stated that she would like to repeat the dose per CDC recommendations. No reports of any adverse reactions following administration of expired dose.