Received Jun 1, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| MMRV | MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD) | MERCK & CO. INC. | UNK | Z017254 | — |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | Z005455 | — |
No symptomatic events were reported; PROQUAD was inadvertently administered to a 24 year old female patient; Inbound call from nurse to report an AE for PROQUAD and VARIVAX. Caller reported that a 24 year old female patient was inadvertently administered both vaccines at the same time; This spontaneous report was received from a nurse and refers to a 24-year-old female patient. The patient's medical history, concurrent conditions, concomitant therapies were not reported, and drug history were not reported (Nurse reported that this patient previously did not have any history of immunization). On 26-MAY-2026, the patient was inadvertently vaccinated at the same time with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (ProQuad), powder for solution for injection, lot #Z017254 [which has been verified to be a valid lot number for Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live], expiration date reported and upon internal validation establish as 10-MAY-2027 (product administered to patient of inappropriate age) and with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX), powder for solution for injection, lot #Z005455 [which has been verified to be a valid lot number for Varicella Virus Vaccine Live (Oka-Merck)], expiration date reported and upon internal validation establish as 04-MAR-2027; both of them administered as 0.5 mL for prophylaxis (dose number, routes and anatomical sites of administration were not provided). The vaccines were reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT), solution for injection (lot # and expiration date were not reported) (accidental overdose). No symptomatic events were reported (no adverse event).
Sterile diluent