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Report #2892935

Received Apr 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
4 yrs
State
TX
Recovered
Unknown
Vaccinated
Apr 14, 2026
Onset
Apr 14, 2026
Days to onset
0
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
MMRVMEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)MERCK & CO. INC.UNKZ014411

Symptoms (2)

No adverse eventUnderdose

Symptom narrative

No additional AE; may have received less than the full volume of PROQUAD; This Spontaneous report was received from Administrator / Supervisor and referred to a 4 -year-old patient of unknown 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 14-Apr-2026, the patient was vaccinated with MMR and Varicella (Oka-Merck) Virus Vaccine Live Injection (PROQUAD) (0.50 mL) (Batch/Lot Number: Z014411) (Expiration date: 10-Mar-2027) with sterile diluent solution for injection for prophylaxis. The reporter said the patient might had received less than the full volume of the vaccine (Underdose). No additional AE (No adverse event).

Other medications

MERCK STERILE DILUENT