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Report #2873881

Received Nov 20, 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
MI
Recovered
Unknown
Vaccinated
Nov 13, 2025
Onset
Nov 13, 2025
Days to onset
0
Hospital days
—

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKZ009077—
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNK——

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

No additional AE reported.; Office Manager who is also a Medical Assistant reported PROQUAD was administered to one patient on 11/13/2025 during a temperature excursion.; This spontaneous report was received from an office manager who was also a medical assistant (physician assistant) and refers to a patient of unknown age and gender. The patient's medical history, concurrent conditions, concomitant therapies, previous drugs reactions and allergies were not reported. On 13-Nov-2025, the patient was vaccinated with an improperly stored dose of measles, mumps, rubella and varicella (oka-merck) virus vaccine live (rHA [recombinant Human albumin]) (PROQUAD) injection (Lot No. Z009077 has been verified to be a valid lot number for [measles, mumps, rubella and varicella (oka-merck) virus vaccine live], expiration date not reported, but upon internal validation established as 15-Nov-2026) (strength, dose number, exact dose quantity volume, route and anatomical location of administration and vaccination scheme frequency were not provided); that was reconstituted with sterile diluent, injection (Lot No., expiration date, route and indication were not provided) (product storage error), after a temperature excursion of 6.8 degree Fahrenheit (F) during a time frame of 1 hour and 20 minutes. No previous temperature excursion was reported. No additional adverse events were reported (no adverse event).