Received Feb 16, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Y013571 | — |
but confirmed the patient has not presented at symptoms or medical concerns after the expired PROQUAD dose was administered; Nurse stated that a patient was administered a dose of PROQUAD today, 2/9/2026, that had a labeled expiration date of 2/3/2026; This spontaneous report was received from a nurse referring to a patient of unknown age and gender. The patient's pertinent medical history, concomitant therapies, and known drug reactions or allergies were not reported. On 09-FEB-2026, the patient was vaccinated with measles, mumps, rubella and varicella (Oka-Merck) virus vaccine live lyophilisate and solvent for solution for injection (PROQUAD) 0.5 mL two dose series, as prophylaxis, operator of device: health care professional (lot # Y013571 has been verified to be valid, expiration date not provided, but upon internal validation established as: 06-FEB-2026, reported as labeled expiration date) (Expired product administered) (route of administration, administration site, and indication were not reported). The vaccine was reconstituted with sterile diluent (MERCK STERILE DILUENT) (dose, frequency, route of administration, administration site, lot #, and expiration date were not reported). It was confirmed that the patient had not presented symptoms or medical concerns after the expired vaccine administration. No additional adverse event reported.
Sterile diluent