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Report #2855673

Received Aug 26, 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
SC
Recovered
Unknown
Vaccinated
May 14, 2025
Onset
May 14, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRMEASLES + MUMPS + RUBELLA (PRIORIX)GLAXOSMITHKLINE BIOLOGICALSUNK4N222—

Symptoms (1)

Product preparation issue

Symptom narrative

patients were administered with the diluent only or maybe one of them was vaccinated with a full dose; patients were administered with the diluent only or maybe one of them was vaccinated with a full dose; This non-serious case was reported by a pharmacist via call center representative and described the occurrence of inappropriate dose of vaccine administered in a 32-year-old female patient who received MMR (Priorix) (batch number 4N222, expiry date 13-SEP-2026) for prophylaxis. On 14-MAY-2025, the patient received Priorix. On 14-MAY-2025, an unknown time after receiving Priorix, the patient experienced inappropriate dose of vaccine administered (Verbatim: patients were administered with the diluent only or maybe one of them was vaccinated with a full dose) and inappropriate preparation of medication (Verbatim: patients were administered with the diluent only or maybe one of them was vaccinated with a full dose). The outcome of the inappropriate dose of vaccine administered and inappropriate preparation of medication 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: 15-AUG-2025 Pharmacist called to report that don't know if two patients were administered with the diluent only or maybe one of them was vaccinated with a full dose, which led to Inappropriate dose of vaccine administered and Inappropriate preparation of medication. The reporter was also wanted to be asked which would be the timeframe for revaccination or not. No further information was obtained in this call. The reporter consented to follow up. The Vaccine Administration Facility was the same as Primary Reporter.; Sender's Comments: US-GSK-US2025105576:2nd patient, same reporter