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Report #2885708

Received Feb 16, 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
TX
Recovered
Unknown
Vaccinated
Feb 5, 2026
Onset
Feb 5, 2026
Days to onset
0
Hospital days
—

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
UNKVACCINE NOT SPECIFIED (NO BRAND NAME)UNKNOWN MANUFACTURERUNK——
VARCELVARICELLA (VARIVAX)MERCK & CO. INC.UNKZ009470—

Symptoms (2)

No adverse eventProduct preparation error

Symptom narrative

No additional AE; MVCC agent called and transferred Medical Assistant on the line who reported administration of VARIVAX to a patient that was reconstituted incorrectly. VARIVAX was reconstituted with another manufacturer's sodium chloride and administered to a patie; 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 05-Feb-2026, the patient was vaccinated with Varicella Virus Vaccine Live (Oka-Merck) (VARIVAX), (valid lot #Z009470, expiration date: 27-May-2027) as prophylaxis, which was reconstituted incorrectly with another manufacturer's sodium chloride (dose, lot # and expiration date was not reported) (product preparation error). No additional adverse event (AE) was reported.

Other medications

Sodium chloride