Report #2855490

Received Aug 25, 2025

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: Male
Age: 6 yrs
State: MN
Recovered: Recovered
Vaccinated: Aug 19, 2025
Onset: Aug 19, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
MMRV	MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)	MERCK & CO. INC.	2	Y014307	SC / LA

Symptoms (1)

Wrong product administered

Symptom narrative

MMRV was accidentally given instead of MMR. The patient already had two doses of varicella, but only one dose of MMR, so only MMR was needed, but the nurse grabbed MMRV and didn't double check before administering MMRV. The patient's mom was told about the error and all pertinent resources, like the VIS for MMRV, were provided. There will be training held for all nurses to ensure this doesn't happen again.

Current illness

none

Medical history

none

Other medications

none

Allergies

sulfa drugs

Lab data

Nothing