Received Nov 26, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Z011859 | — |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | Y017915 | — |
patient has not reported any symptoms / no additional AE; Nurse calling to report inadvertently administering PROQUAD concomitantly with VARIVAX instead of MMR vaccine.; Nurse calling to report in advertently administering PROQUAD concomitantly with VARIVAX instead of MMR vaccine.; This spontaneous report was received from a nurse and refers to a patient of unknown age and gender. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 05-Nov-2025, the patient was inadvertently vaccinated with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) solution for injection, lot #Z011859, expiration date: 13-Jan-2027 (exact dose, dose number, route of administration and anatomical location were not reported) concomitantly with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) solution for injection, lot #Y017915, expiration date: 28-Oct-2026 (exact dose, dose number, route of administration and anatomical location were not reported) instead of Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine Live (M-M-R II), for prophylaxis (Accidental overdose, Wrong product administered). The vaccines were reconstituted with sterile diluent (lot# and expiration date were not reported). The patient has not reported any symptoms, no additional adverse event was reported.
sterile diluent