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Report #2870282

Received Nov 3, 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
NY
Recovered
Unknown
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKY013578—

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

No additional adverse event; HCP called to report a TE occurring on 8/18/2025 for PROQUAD and VARIVAX.; This spontaneous report was received from a physician concerning a 4-year-old patient of an unknown gender. The patient's concurrent conditions, medical history, or concomitant therapies were not provided. On 18-AUG-2025, a temperature excursion occurred and on an unknown date, the patient was vaccinated with an improper stored dose of Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD), 0.5 mL administered for prophylaxis, lot #Y015108 [which has been verified to be valid lot number for Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live], expiration date reported and upon internal validation establish as 03-FEB-2026 (strength, dose number, route and anatomical site of administration were not provided) (improper stored of product in use). No adverse events were reported. This is one of several cases received from the same reporter.

Other medications

sterile diluent