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Report #2869880

Received Oct 31, 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
Unknown
Age
Age unknown
State
IL
Recovered
Unknown
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

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

Symptoms (1)

Product preparation issue

Symptom narrative

unaccompanied diluent used; have received the one without the diluent; This non-serious case was reported by a other health professional via call center representative and described the occurrence of inappropriate preparation of medication in a patient who received MMR (Priorix) for prophylaxis. On an unknown date, the patient received Priorix. On an unknown date, an unknown time after receiving Priorix, the patient experienced inappropriate preparation of medication (Verbatim: unaccompanied diluent used) and inappropriate dose of vaccine administered (Verbatim: have received the one without the diluent). 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: 15-OCT-2025 The reporter had a question regarding Priorix. They discovered a vial of the MMR (Priorix) vaccine in the box without its corresponding sterile diluent. Prior to being discovered, two patients received the Priorix vaccine; however, they were unable to determine which patient received the properly reconstituted vaccine and which might have received the one without the diluent. The reporter did not have patient information and wanted to know the manufacture for guidance on what should be the next step. No other Information available. The batch number was not provided and a request for this information has been made.