Received Jun 16, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | — | OT |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | — | OT |
No additional AE; Nurse calling with a report of an adverse event involving a 15 month old patient who was inadvertently administered PROQUAD and VARIVAX during the same vaccination appointment. Nurse stated that the patient was inadvertently administered the vaccine; This spontaneous report was received from a nurse and refers to a 15-month-old patient of unknown gender. The patient's medical history, concurrent conditions and concomitant therapies were not provided. On 09-JUN-2025, the patient was inadvertently vaccinated with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) injection, 0.5 mL (in two dose series), administered by intramuscular route for prophylaxis (anatomical location, lot # and expiration date were not reported); and with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) injection, 0.5 mL (in two dose series), administered by intramuscular route as Measles, Mumps, Rubella, Varicella vaccination (anatomical location, lot # and expiration date were not reported); both vaccines were given along with sterile diluents (Merck Sterile Diluent) solution for injection (no administration details), during the same vaccination appointment (Accidental overdose). No additional adverse events. At the reporting time, the outcome of the events was unknown. The action taken with the suspect products was not reported but established as not applicable.
Sterile diluent VARIVAX; Sterile diluent PROQUAD