Received May 12, 2026
Reports are unverified and do not show that a vaccine caused an event. Full disclaimer
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | 1 | Z002625 | — |
| VARCEL | VARICELLA (VARIVAX) | MERCK & CO. INC. | 2 | Z002625 | — |
the patient involved has not reported any medical concerns / No additional AE; STERILE DILUENT with an expiration date of 2/6/2026 was administered twice to the patient; STERILE DILUENT with an expiration date of 2/6/2026 was administered twice to the patient; This Spontaneous report was received from Pharmacist and referred to a patient of unknown age and gender. The patient's medical history, past medications and concomitant medications were not reported. On 20-Feb-2026 and 21-Mar-2026, the patient was vaccinated with the first and second dose (Two dose series) of Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) 0.50 ml once, Lot Number: Z002625 and Expiration date: 08-Jan-2027) for prophylaxis (route and anatomical site were not provided). Pharmacist stated that in a worst-case scenario, the STERILE DILUENT (0.7ml once) (lot# and route of administration not provided) used in both applications to reconstitute the vaccine, had an expiration date of 06-FEB-2026 (Expired product administered). Pharmacist confirmed that the patient involved had not reported any medical concerns. This is one of several reports from the same source.
DILUENT MRK