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Report #2857670

Received Sep 9, 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
CO
Recovered
Unknown
Vaccinated
Sep 5, 2025
Onset
Sep 5, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKY018161—

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

Nurse confirmed no reports of medical concerns regarding this report.; a dose of PROQUAD was exposed to a temperature excursion today, 9/5/2025, and administered to a patient shortly after the excursion occurred; 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, Concomitant therapies, and drug reactions/allergies were not reported. On 05-Sep-2025, a dose of Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) (lot #Y018161, expiration date: 29-Apr-2026) was exposed to a temperature excursion. On that day (shortly after the excursion), this improperly stored vaccine was administered to a patient, 0.5 mL / Two dose series, as prophylaxis (product storage error). This vaccine was reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT) (expiration date, and lot # were not reported). It was confirmed that there were no reports of medical concerns regarding this report (no adverse event).

Medical history

Comments: unknown

Other medications

sterile diluent