Received Apr 28, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMR | MEASLES + MUMPS + RUBELLA (PRIORIX) | GLAXOSMITHKLINE BIOLOGICALS | UNK | 5549J | — |
were administered the prefilled syringe of Sterile water Diluent Component without the single-dose vial of Lyophilized Antigen Component.; Inappropriate dose of vaccine administered.; This non-serious case was reported by a pharmacist via call center representative and described the occurrence of inappropriate preparation of medication in a 45-year-old female patient who received MMR (Priorix) (batch number 5549J, expiry date 01-APR-2027) 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: were administered the prefilled syringe of Sterile water Diluent Component without the single-dose vial of Lyophilized Antigen Component.) and inappropriate dose of vaccine administered (Verbatim: Inappropriate dose of vaccine administered.). 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:24-APR-2026 The batch number was not provided upon follow up with the reporter. This case has been linked to the case US2026056595 and US2026056596 reported by the same reporter.; Sender's Comments: US-GSK-US2026056595:Same Reporter/different patient US-GSK-US2026056596:Same Reporter/different patient