Received Nov 3, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Y016876 | — |
No additional adverse event; HCP called to report a TE occurring on 8/18/2025 for PROQUAD and VARIVAX.; This spontaneous report was received from a physician, concerning to a 3-year-old patient of unknown gender. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 18-Aug-2025, occurred a temperature excursion (TE) of the vaccines Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) and Varicella Virus Vaccine Live (Oka-Merck) lyophilisate and solvent for solution for injection (VARIVAX). On an unknown date2025, the patient was vaccinated with Measles, Mumps, Rubella and Varicella (Oka- Merck) Virus Vaccine Live (PROQUAD), (the product was reported as Varicella Virus Vaccine Live (Oka- Merck) lyophilisate and solvent for solution for injection (VARIVAX) but was confirmed per Lot# as PROQUAD) (lot #Y016876 has been verified to be valid for this product, expiration date confirmed as 07- Apr-2026) (dose and route not provided); reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT). Vaccine administered as prophylaxis. This was one of the vaccines involved in the TE (Product storage error). No additional adverse events reported (No adverse event). This was one of several reports received from the same reporter.
MERCK STERILE DILUENT