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
1.5 yrs
State
MA
Recovered
Unknown
Vaccinated
Dec 9, 2025
Onset
Jan 5, 2026
Days to onset
27
Hospital days
—
Vaccines (1)
Type
Name
Manufacturer
Dose
Lot
Route / Site
DTAPIPVHIB
DTAP + IPV + HIB (PENTACEL)
SANOFI PASTEUR
2
UK352AA
IM / RL
Symptoms (3)
Injection site bruisingInjection site erythemaInjection site mass
Symptom narrative
Initial redness and bruising around the site, becoming a hard lump at injection site.