Report #2891049

Received Mar 27, 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: Female
Age: 4 yrs
State: CA
Recovered: Recovered
Vaccinated: Mar 24, 2026
Onset: Mar 24, 2026
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	Z011864	SC / LL

Symptoms (4)

Injection site erythemaInjection site pruritusInjection site swellingInjection site warmth

Symptom narrative

Left thigh - itchy - red and swollen - warm to touch - width of redness measured 13in. wide and 7in length - reaction started same day as vaccine admin. -

Current illness

Nonaware

Medical history

None

Other medications

None

Allergies

NKDA

Lab data

None