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
4 yrs
State
MI
Recovered
Not recovered
Vaccinated
Nov 14, 2025
Onset
Nov 15, 2025
Days to onset
1
Hospital days
—
Vaccines (1)
Type
Name
Manufacturer
Dose
Lot
Route / Site
MMRV
MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)
MERCK & CO. INC.
2
Z011897
IM / RL
Symptoms (3)
Injection site erythemaInjection site swellingInjection site warmth
Symptom narrative
Right anterior thigh swelling, warmth and erythema.