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Report #2888975

Received Mar 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
CA
Recovered
Unknown
Vaccinated
Mar 11, 2026
Onset
Mar 11, 2026
Days to onset
0
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKZ010732

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

No additional AE; Patient received improperly stored vaccine; This spontaneous report was received from a medical assistant and referred to a patient of unknown age and gender. The patient's medical history, past medications, and concomitant medications were not reported. On 11-Mar-2026, the patient was vaccinated with improperly stored Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (Proquad) lyophilisate and solvent for solution for injection, 1 dose (Batch/lot number Z010732 has been verified to be a valid batch lot number for Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live, expiration date was reported and confirmed as 22-Dec-2026; route of administration and anatomical location were not provided) (Product storage error). The vaccine underwent a temperature excursion of 8.4F for a duration of 1 hour and 45 minutes and had no prior temperature excursions. The vaccine was administered as prophylaxis and was reconstituted with sterile diluent (Hollister-Stier STERILE DILUENT) (lot # and expiration date were not reported). The diluent used for reconstitution did not experience any temperature excursion. No additional adverse events (AEs) were reported.

Other medications

DILUENT MRK