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
1.7 yrs
State
CO
Recovered
Recovered
Vaccinated
May 23, 2025
Onset
May 23, 2025
Days to onset
0
Hospital days
—
Vaccines (1)
Type
Name
Manufacturer
Dose
Lot
Route / Site
HIBV
HIB (ACTHIB)
SANOFI PASTEUR
4
UK169AB
IM / RA
Symptoms (1)
Product preparation error
Symptom narrative
When the Medical Assistant mixed the vaccine, the wrong sterile diluent was used.