Received Dec 12, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Z010733 | — |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | Z011895 | — |
No additional AE; Nurse reported that one year old patient received VARIVAX and PROQUAD on the same day due to a human error. The patient supposed to receive MMR II and VARIVAX but received VARIVAX and PROQUAD instead. No additional AE/No PQC reported.; The patient supposed to receive MMR II and VARIVAX but received VARIVAX and PROQUAD instead.; This spontaneous report was received from a Nurse and refers to a 1-year-old patient of unknown gender. The patient's medical history, concurrent condition, and concomitant therapies were not reported. On 02-Dec-2025, due to human error, the patient was vaccinated with both Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX), Solution for injection, lot #Z011895, expiration date: 17-Jul-2027, 1 dosage form (exact dose, route and site of administration not provided) and with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD), Solution for injection, lot #Z010733, expiration date: 22-Dec-2026, 1 dosage form (exact dose route and site of administration not provided) for prophylaxis (overdose). The suspect vaccines were reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT) (dose, route and site of administration, indication, expiration date, and lot # were not reported). The patient was supposed to be vaccinated with Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine (M-M-R II) and Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX), but received Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) and Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) instead (wrong product administered). There was not additional adverse event (AE) (no adverse event).
sterile diluent