Report #2831221

Received Mar 13, 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: 1 yrs
State: MI
Recovered: Recovered
Vaccinated: Jan 30, 2025
Onset: Feb 20, 2025
Days to onset: 21
Hospital days: —

Vaccines (4)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEPA	HEP A (VAQTA)	MERCK & CO. INC.	UNK	—	—
HIBV	HIB (ACTHIB)	SANOFI PASTEUR	UNK	—	—
MMRV	MEASLES + MUMPS + RUBELLA + VARICELLA (PROQUAD)	MERCK & CO. INC.	UNK	—	—
PNC20	PNEUMO (PREVNAR20)	PFIZER\WYETH	UNK	—	—

Symptoms (4)

Cerebellar ataxiaMagnetic resonance imaging head normalMumps antibody test positiveParotitis

Symptom narrative

Developed right side parotitis and acute cerebellar ataxia that last 2-3 days

Current illness

None reported.

Medical history

None

Other medications

None

Allergies

Adhesives silicone tapes

Lab data

Positive IgM for mumps, negative PCR. Normal head MRI.