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Report #2889442

Received Mar 18, 2026

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
MD
Recovered
Unknown
Vaccinated
—
Onset
Jan 5, 2026
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
VARCELVARICELLA (VARIVAX)MERCK & CO. INC.UNKZ008430OT

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

No additional AE; Customer called to report TE. VARIVAX was administered to 3 patients.; This spontaneous report was received from a Nurse and refers to a 4-year-old patient of unknown gender. The patient's medical history, concurrent conditions, concomitant therapies, drug reactions or allergies were not reported. On an unknown date, the patient was vaccinated with a dose of Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX) 0.5 mL (lot #Z008430, expiration date: 06-May-2027) as prophylaxis, which was reconstituted with sterile diluent 0.7 mL (lot # Z002901, expiration date: 25-Nov-2027) (dose number, route of administration, anatomical location not provided) as prophylaxis; which underwent a temperature excursion (TE) at 14 degree Fahrenheit (F) up to 46 F (17.44 F) for 17 hours and 30 minutes on 05-Jan-2026. No previous TE were reported, no additional adverse events reported. This is one of three cases reported by the same reporter.

Other medications

MERCK STERILE DILUENT