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Report #2846828

Received Jun 23, 2025

A note on interpretation. VAERS reports are unverified and may be incomplete or coincidental. A report does not establish that a vaccine caused an event, and counts should not be used to calculate incidence or infer causation. Full disclaimer

Overview

Sex
Unknown
Age
Age unknown
State
KY
Recovered
Unknown
Vaccinated
Jan 19, 2023
Onset
Jun 18, 2025
Days to onset
881
Hospital days
—

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
VARCELVARICELLA (VARIVAX)MERCK & CO. INC.UNK——
VARCELVARICELLA (VARIVAX)MERCK & CO. INC.UNKX012268—

Symptoms (2)

Expired product administeredNo adverse event

Symptom narrative

No symptoms or side effects; HCP called to report an expired dose of VARIVAX was administered to a patient on 6/18/2025.; This spontaneous report was received from a medical assistant and refers to a patient of unknown age and gender. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 19-JAN-2023, the patient was vaccinated with the first dose of Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) with sterile diluent (MERCK STERILE DILUENT) administered for prophylaxis (strength, lot number, expiration date, route and anatomical site of administration were not provided). On 18-JUN-2025, the patient was vaccinated with a second expired dose of Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) injection, 0.5 mL, lot #X012268 [which has been verified go be valid lot number for Varicella Virus Vaccine Live (Oka-Merck)], expiration date reported and upon internal validation establish as 30-APR-2025. The vaccine was reconstituted with sterile diluent (MERCK STERILE DILUENT), lot #Y016370, expiration date: 13-MAY-2027 upon internal validation. Both were administered for prophylaxis (strength, route and anatomical site of administration were not provided). Expired dose supported by post expiry memo (Expired product administered). Despite multiple reiterations of the supported outcome, customer not comprehending outcome and hung up despite offer to look into further resources if unclear. No symptoms or side effects (No adverse event). No previous temperature excursion.

Other medications

Sterile diluent; Diluent MRK