VAERS Explorer
Back to explore

Report #2884037

Received Feb 4, 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
Unknown
Age
Age unknown
State
—
Recovered
Unknown
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MNPMENINGOCOCCAL CONJUGATE (PENMENVY)GLAXOSMITHKLINE BIOLOGICALSUNKUNK—

Symptoms (1)

Product preparation issue

Symptom narrative

she gave the Men B portion and did not mix it with the ACWY portion; she gave the Men B portion and did not mix it with the ACWY portion; This non-serious case was reported by a nurse via call center representative and described the occurrence of inappropriate preparation of medication in a patient who received Men ABCWY NVS (Penmenvy) for prophylaxis. On an unknown date, the patient received Penmenvy. On an unknown date, an unknown time after receiving Penmenvy, the patient experienced inappropriate preparation of medication (Verbatim: she gave the Men B portion and did not mix it with the ACWY portion) and inappropriate dose of vaccine administered (Verbatim: she gave the Men B portion and did not mix it with the ACWY portion). The outcome of the inappropriate preparation of medication and inappropriate dose of vaccine administered were 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-JAN-2026 The nurse reported that another nurse administered the syringe portion of the Permenvy packaging. Meaning, she gave the Men B portion and did not mix it with the ACWY portion. This dose was administered and she was curious as well if this counted as a Men B dose or not. The batch number was not provided and a request for this information has been made.