Report #2878956

Received Dec 22, 2025

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: Unknown
Age: Age unknown
State: —
Recovered: Unknown
Vaccinated: —
Onset: —
Days to onset: —
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (HEPLISAV-B)	DYNAVAX TECHNOLOGIES CORPORATION	UNK	—	—

Symptoms (1)

Allergy to vaccine

Symptom narrative

Allergic to that Vaccine; Initial report received on 11-Dec-2025. A reporter reported that a patient (age and gender unknown) received HEPLISAV-B (hepatitis B vaccine) for hepatitis B immunization and the patient was allergic to that vaccine. No medical history or concomitant medications were reported. On an unknown date, the patient received a dose of a hepatitis B vaccine [HEPLISAV-B (lot number, expiration date, NDC number, route, and site not available)]. On an unknown date, after receiving HEPLISAV-B, the patient reported that the patient was "allergic to that vaccine." No other information was available. Company Comment: The company assessed the event as non-serious.; Sender's Comments: The company assessed the event as non-serious.