Received Feb 12, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | Z008428 | — |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | UNK | Z013023 | — |
No adverse events; HCP reports that the patient was inadvertently administered VARIVAX during a temperature excursion. The exact lot administered is unknown as there were two involved in the overall excursion. The DILUENT used to reconstitute the VARIVAX lot and expira; This spontaneous report was received from a registered nurse concerning a patient of unknown age and gender. The patient's pertinent medical history, past drug reactions or allergies, concurrent conditions and concomitant therapies were not provided. On 04-FEB-2026, the nurse inadvertently administered a dose of with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) during a temperature excursion. The exact lot administered was unknown as there were two involved in the overall excursion (it could be lot #Z008428, expiration date: 06-MAY-2027 or z013023, expiration date 12-AUG-2027) 0.5ml/serie (dose, anatomical location and route were not reported) as prophylaxis. The vaccine was reconstituted with sterile diluent (MERCK STERILE DILUENT) (lot number and expiration date not reported). It was reported that Temperature -11.75C with time frame 0 hours 48 minutes and 0 seconds. Previous temperature excursion? n/a. This is one of several cases created from the same source. Additional information is not expected.
DILUENT MRK