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Report #2887622

Received Mar 4, 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
NV
Recovered
Unknown
Vaccinated
Onset
Days to onset
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKZ008866

Symptoms (2)

No adverse eventProduct storage error

Symptom narrative

HCP called to report a TE for PROQUAD. Caller reported improperly stored product was inadvertently administered to a patient.; No additional AE; This spontaneous report was received from other health professional referring to a male patient. The patient's pertinent medical history, known drugs allergies or reactions, and concomitant therapies were not reported. On an unspecified date, the patient was vaccinated with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection (PROQUAD) 0.5 mL as prophylaxis, lot #Z008866 (expiration date: 10-NOV-2026) (route of administration and administration site were not reported); it was reported that the vaccine was improperly stored as there was a temperature excursion, temperature was 26 F on a time frame of 2 hours and 6 minutes (Product storage error). The vaccine was reconstituted with sterile diluent (MERCK STERILE DILUENT). No adverse event present.

Other medications

Sterile diluent