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Report #2893125

Received Apr 17, 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
Recovered
Unknown
Vaccinated
Apr 2, 2026
Onset
Apr 2, 2026
Days to onset
0
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.2Z011828OT

Symptoms (2)

No adverse eventProduct storage issue

Symptom narrative

No adverse event; Customer called to report temperature excursion for PROQUAD and stated that a dose of PROQUAD was inadvertently administered after the temperature excursion.; This spontaneous report was received from a nurse and refers to a specific patient of unknown age and gender. The patient's medical history, concurrent conditions and concomitant therapies were not reported. On 02-Apr-2026, the patient was vaccinated with the second dose of Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) (lot #Z011828 with valid expiration date reported as 12-Jan-2027) 0.5 mL administered intramuscularly for prophylaxis. The vaccine was reconstituted with sterile diluent, solution for injection (lot # 1973322 with valid expiration date reported as 28-Nov-2026). The dose of Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live (PROQUAD) was inadvertently administered after the temperature excursion (temperature: 14.2 F for 29 hours) (product storage error). There was no previous temperature excursion. No additional adverse event (AE) and no product quality complaint (PQC) was reported (no adverse event).; Sender's Comments: Priority : 5 , Is case serious : No , MNSC number : 02980736-02979546 , CLIC number : , ESTAR number : , IRMS number : 500TP00000hpEkyYAE|14042026230039|6365 , Central date : 2026-04-15 , Classification : DMC, Attachment description : NSC Call , Safety case number : , MNSC case number : 02980736 , MNSC interaction number : 02979546 , Integration log UniqueID : 500TP00000hpEkyYAE|14042026230039|6365 , Service cloud CaseID : 500TP00000hpEkyYAE

Other medications

sterile diluent