Received Feb 9, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Y019464 | — |
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | — | — |
No additional AE/PQC.; Caller reported AE on behalf of a patient who was administered improperly stored PROQUAD on 6/17/2025 following a TE that occurred on 6/16/2025; Information has been received from Business Partner. This Spontaneous report was received from Nurse and referred to a/an patient of unknown age and gender. The patient's medical history was not reported. The patient's past medications were not reported. The patient's concomitant medications were not reported. On 17-Jun-2025, the patient started therapy with sterile diluent Solution for injection Asked But Unknown Batch/Lot Number. On 17-Jun-2025, the patient started therapy with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection (0.50 mL) (total) (Batch/Lot Number: Y019464) (Expiration date: 10-Nov-2026) dose form was Solution for injection (Dose Text: 0.5ml/dose). The patient started therapy with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection for the treatment of Prophylaxis, The patient started therapy with sterile diluent Solution for injection for the treatment of Prophylaxis, On 16-Jun-2025, the patient experienced Caller reported AE on behalf of a patient who was administered improperly stored PROQUAD on 6/17/2025 following a TE that occurred on 6/16/2025 (Product storage error). On an unknown date, the patient experienced No additional AE/PQC. (No adverse event). The Outcome of Product storage error was not provided. The Outcome of No adverse event was not provided. The action taken with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection regarding Product storage error was Not applicable with Not Applicable dechallenge and rechallenge results. The action taken with sterile diluent Solution for injection regarding Product storage error was Not applicable with Not Applicable dechallenge and rechallenge results. Case Assessments: Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection regarding No adverse event with Not Applicable dechallenge and rechallenge results. Case Assessments: sterile diluent Solution for injection regarding No adverse event with Not Applicable dechallenge and rechallenge results. The Nurse considered the event Product storage error (,) to be not assessed to Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection, the event No adverse event (,) to be not assessed to Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection, the event Product storage error (,) to be not assessed to sterile diluent Solution for injection, and the event No adverse event (,) to be not assessed to sterile diluent Solution for injection The Nurse considered the event Product storage error to be non-serious and the event No adverse event to be non-serious