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Report #2886404

Received Feb 23, 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
CO
Recovered
Unknown
Vaccinated
Dec 17, 2025
Onset
Dec 17, 2025
Days to onset
0
Hospital days

Vaccines (2)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKZ010731
VARCELVARICELLA (VARIVAX)MERCK & CO. INC.UNKZ008083

Symptoms (2)

Extra dose administeredNo adverse event

Symptom narrative

No additional AE; a patient was administered PROQUAD and VARIVAX concomitantly on 12/17/2025.; This Spontaneous report was received from Nurse 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 17-Dec-2025, the patient was vaccinated with Measles, Mumps, Rubella and Varicella (Oka-Merck) Virus Vaccine Live lyophilisate and solvent for solution for injection (1 dose, Lot Number: Z010731, Expiration date: 22-Dec-2026; strength, frequency and route were not reported) and Varicella Virus Vaccine Live (Oka-Merck) lyophilisate and solvent for solution for injection (1 dose, Batch/Lot Number: Z008083, Expiration date: 28-Apr-2027; strength, frequency and route were not reported) concomitantly for Prophylaxis (Overdose). No additional adverse event (AE)/no product quality complaints (PQC) reported.

Other medications

DILUENT