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Report #2889834

Received Mar 18, 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
WI
Recovered
Unknown
Vaccinated
Feb 10, 2026
Onset
Feb 10, 2026
Days to onset
0
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKZ011860

Symptoms (1)

Product storage error

Symptom narrative

No symptoms reported; a dose of improperly stored PROQUAD was inadvertently administered to a patient; This Spontaneous report was received from a registered Nurse (R.N) and referred to a patient of unknown age and gender. The patient's medical history was not reported. The patient's past medications were not reported. The patient's concomitant medications were not reported. On 10-feb-2026, patient was vaccinated with an improperly stored dose of Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection (PROQUAD) 0.5 ml, Lot Number: Z011860, expiration date: 13-Jan-2027 (strength, route and anatomical location were not provided) for prophylaxis. The temperature excursion was 5°C, time frame: 960 hours 0 minutes 0 seconds and there was no previous temperature excursion. No adverse events reported.; Sender's Comments: Priority : 5 , Is case serious : No , MNSC number : 02961221-02961215 , CLIC number : , ESTAR number : , IRMS number : 500TP00000fk78XYAQ|10032026200005|6224 , Central date : 2026-03-11 , Classification : DMC, Attachment description : NSC Call , Safety case number : , MNSC case number : 02961221 , MNSC interaction number : 02961215 , Integration log UniqueID : 500TP00000fk78XYAQ|10032026200005|6224 , Service cloud CaseID : 500TP00000fk78XYAQ

Other medications

Sterile Diluent