Received Jul 16, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | — | — |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | — | — |
No symptoms reported at the time of the call/No additional AE; HBP called to report an inadvertent concomitant administration of VARIVAX and PROQUAD (in place of MMR II). Caller reported that a 6 year old male patient was administered VARIVAX and PROQUAD today, 6/25/2025. No symptoms reported at the time of the; PROQUAD (in place of MMR II); This spontaneous report was received from a medical assistant and refers to a(n) 6-year-old male patient. The patient's medical history was not reported. The patient's concurrent conditions were not reported. Concomitant therapies were not reported. On 25-Jun-2025, the patient was inadvertent vaccinated with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX REFRIGERATOR STABLE) (formulation, lot #, expiration date, exact dose, route of administration and anatomical location were not reported); and with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD), formulation: injection 0.5 mL (lot #, expiration date, route of administration and anatomical location were not provided) for prophylaxis (accidental overdose). The vaccines were reconstituted with sterile diluent (MERCK STERILE DILUENT). It was reported that Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) was administered in place of Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine (MMR II) (wrong vaccine administered). No symptoms reported at the time of the call (no adverse event).
Sterile diluent