Report #2866206

Received Oct 16, 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: Female
Age: 39 yrs
State: —
Recovered: Unknown
Vaccinated: Oct 6, 2025
Onset: Oct 6, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
MMRV	MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)	MERCK & CO. INC.	UNK	Z006279	—

Symptoms (3)

No adverse eventProduct administered to patient of inappropriate ageProduct storage error

Symptom narrative

No reported side effects/ No additional AE/No PQC.; 39-year-old female patient vaccinated with ProQuad; HCP calling to report a TE for PROQUAD. Product was administered to a patient; This spontaneous report has been received from a health care professional, regarding a 39-year-old female patient. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 06-Oct-2025, the patient was vaccinated with an improperly storage dose of Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD), Injection (lot number: Z006279, which was determined to be valid as vial formulation, with an expiration date on 15-Sep-2026) as prophylaxis (strength, dose, scheme, route and anatomical location of administration were reported). The vaccine was reconstituted with sterile diluent (MERCK STERILE DILUENT) (lot number and expiration date were unknown). Temperature excursion details were not provided. No additional adverse event was reported.

Other medications

MERCK STERILE DILUENT