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
MA
Recovered
Unknown
Vaccinated
Dec 15, 2025
Onset
Dec 15, 2025
Days to onset
0
Hospital days
—
Vaccines (1)
Type
Name
Manufacturer
Dose
Lot
Route / Site
HIBV
HIB (ACTHIB)
SANOFI PASTEUR
4
UK306AA
IM / RA
Symptoms (1)
Product preparation error
Symptom narrative
vaccine powder mixed with normal saline instead of liquid provided.