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
23 yrs
State
CA
Recovered
Recovered
Vaccinated
Oct 15, 2025
Onset
Oct 15, 2025
Days to onset
0
Hospital days
—
Vaccines (1)
Type
Name
Manufacturer
Dose
Lot
Route / Site
COVID19
COVID19 (COVID19 (MODERNA))
MODERNA
UNK
3052550
IM / RA
Symptoms (2)
Product preparation errorUnderdose
Symptom narrative
patient was administered only half a dose because the remaining part of the dose was frozen.