Report #2896675

Received May 15, 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: 11 yrs
State: MI
Recovered: Unknown
Vaccinated: May 4, 2026
Onset: May 4, 2026
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
MENB	MENINGOCOCCAL B (BEXSERO)	NOVARTIS VACCINES AND DIAGNOSTICS	1	77KA5	—

Symptoms (1)

Wrong product administered

Symptom narrative

Bexsero instead of Men ACWY; This non-serious case was reported by a other health professional via call center representative and described the occurrence of wrong vaccine administered in a 11-year-old female patient who received Men B NVS (Bexsero) (batch number 77KA5, expiry date 30-NOV-2027) for prophylaxis. Co-suspect products included meningococcal vaccine a/c/y/w (Men Acwy) for prophylaxis. On 04-MAY-2026, the patient received the 1st dose of Bexsero. The patient did not receive Men Acwy. On 04-MAY-2026, an unknown time after receiving Bexsero, the patient experienced wrong vaccine administered (Verbatim: Bexsero instead of Men ACWY). This report is made by GSK without prejudice and does not imply any admission or liability for the incident or its consequences.