Report #2864378

Received Oct 8, 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: OH
Recovered: Unknown
Vaccinated: Sep 23, 2025
Onset: Sep 23, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
VARCEL	VARICELLA (VARIVAX)	MERCK & CO. INC.	UNK	X024649	—

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

No additional AE/PQC reported.; Caller reported VARIVAX was administered after being reconstituted with expired sterile Diluent.; This spontaneous report was received from a nurse and refers to a patient of unknown age and gender. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 23-Sep-2025, the patient was vaccinated with a dose of Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) (lot #X024649 with expiration date reported as and upon internal validation confirmed to be 11-Oct-2025) 0.5 mL (route of administration and vaccination site were not reported) administered for prophylaxis. The vaccine was reconstituted with expired sterile diluent, solution for injection, lot # W036917, expiration date: 21-Sep-2025 (expired product administered). No other information was provided. No additional adverse event (AE) or product quality complaint (PQC) was reported.

Other medications

DILUENT MRK