VAERS Explorer
Back to explore

Report #2857019

Received Sep 5, 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
11 yrs
State
AZ
Recovered
Unknown
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MENBMENINGOCOCCAL B (BEXSERO)NOVARTIS VACCINES AND DIAGNOSTICS1——

Symptoms (1)

Wrong product administered

Symptom narrative

Bexsero instead of MCV4 vaccines at 11-year-old visit; This non-serious case was reported by a physician via sales rep and described the occurrence of wrong vaccine administered in a 11-year-old female patient who received Men B NVS (Bexsero) for prophylaxis. Co-suspect products included Men ACWY-CRM NVS (Meningococcal polysaccharide groups A, C, W-135, Y conjugate vaccine) for prophylaxis. On an unknown date, the patient received the 1st dose of Bexsero. The patient did not receive Meningococcal polysaccharide groups A, C, W-135, Y conjugate vaccine. On an unknown date, an unknown time after receiving Bexsero, the patient experienced wrong vaccine administered (Verbatim: Bexsero instead of MCV4 vaccines at 11-year-old visit). 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: 06-AUG-2025 and 07-AUG-2025 The patient received Bexsero instead of MCV4 (Meningococcal polysaccharide groups A, C, W-135, Y conjugate vaccine) at her visit, which led to wrong vaccine administered. The reporter knew it was approved down to 10 years and not harmful but wanted to know would this count as her 1st dose. The reporter further asked was this ok to just get 2nd dose at 16 years of age or does she need 2 more doses 16 to18 years of age.