Received Jul 4, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Y008280 | — |
no adverse event; wrong product administered; Interchange of vaccine products; Medical Assistant calling with a report of an adverse event regarding PROQUAD. Medical Assistant stated that a patient older than the recommended age for administration of PROQUAD was administered a dose today, 6/10/2025, during a routine vaccinatio; This spontaneous report was received from other health professional (medical assistant) and refers to a patient of unknown age and gender. The patient's medical history, concurrent conditions, and concomitant therapies were not reported. On 10-JUN-2025, the patient was vaccinated with measles, mumps, rubella and varicella (oka-merck) virus vaccine live (PROQUAD) (valid lot #Y008280, expiration date 21-OCT-2025 upon internal validation) 0.5 mL (two dose series) as prophylaxis. The vaccine was reconstituted with sterile diluent (MERCK STERILE DILUENT) (indication, expiration date, and lot # were not reported). It was informed that that the suspect vaccine was administered to a patient older than the recommended age (product administered to patient of inappropriate age). However, the patient should be vaccinated with a booster dose of Measles, Mumps, and Rubella (Wistar RA 27-3) Virus Vaccine (M-M-R-II) (wrong product administered/interchange of vaccine products). The dose of measles, mumps, rubella and varicella (oka-merck) virus vaccine live (PROQUAD) was administered due to an oversight while preparing the patient for vaccination and confirmed the patient had not reported any medical concerns or symptoms at this time after being vaccinated (no adverse event). No additional information provided.