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Report #2874522
Received Nov 24, 2025
ER / ED visit
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.
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Overview
Sex
Male
Age
32 yrs
State
CA
Recovered
Not recovered
Vaccinated
Nov 17, 2025
Onset
Nov 17, 2025
Days to onset
0
Hospital days
—
Vaccines (1)
Type
Name
Manufacturer
Dose
Lot
Route / Site
HEP
HEP B (HEPLISAV-B)
DYNAVAX TECHNOLOGIES CORPORATION
1
946914
IM / RA
Symptoms (2)
Syncope
Unresponsive to stimuli
Symptom narrative
Systemic: Fainting / Unresponsive-Medium