Report #2898753

Received Jun 2, 2026

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: Age unknown
State: NY
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	1	—	—

Symptoms (1)

Wrong product administered

Symptom narrative

Was Given Engerix-B As The Second Dose Instead of Heplisav-B; Initial report received on 20-May-2026. A consumer reported that she, a 78-year-old female (gender, race, ethnicity not reported) received ENGERIX-B (hepatitis B vaccine) for hepatitis B immunization instead of HEPLISAV-B. No medical history or concomitant medications were reported. On an unknown date, the patient received an unknown dose of a hepatitis B vaccine (ENGERIX-B (lot #, route, and site not reported). On an unknown date, the patient received dose 1 of HEPLISAV-B (lot#, expiration date, NDC #, route and site not reported). ENGERIX-B was given instead of dose 2 of HEPLISAV-B. Reporter declined to provide further information. Company Comment: The company assessed the event as non-serious.; Sender's Comments: The company assessed the event as non-serious.

Current illness

No adverse event