Report #2886392

Received Feb 23, 2026

ER / ED visit

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: 1.3 yrs
State: —
Recovered: Recovered
Vaccinated: Dec 16, 2025
Onset: Dec 24, 2025
Days to onset: 8
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
MMR	MEASLES + MUMPS + RUBELLA (MMR II)	MERCK & CO. INC.	1	Z005719	IM / RL

Symptoms (4)

PyrexiaStaringUnresponsive to stimuliViral test negative

Symptom narrative

105 fever that did not break with motrin or tylenol for >10 hours. A few times pt would stare off into space and not respond to name.

Current illness

None

Medical history

None

Other medications

None

Allergies

Eggs, Peanuts

Lab data

Pt went to hospital and had viral panel done which was unremarkable. No other cause for the fever was identified