Report #2850172

Received Jul 17, 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: Male
Age: Age unknown
State: CA
Recovered: Unknown
Vaccinated: May 30, 2025
Onset: Jun 30, 2025
Days to onset: 31
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (HEPLISAV-B)	DYNAVAX TECHNOLOGIES CORPORATION	1	—	—

Symptoms (2)

Incorrect route of product administrationNo adverse event

Symptom narrative

Accidentally Gave the HEPLISAV-B SubQ Instead of IM; Initial report received on 01-Jul-2025. A pharmacist reported that a 26-year-old male received HEPLISAV-B (hepatitis B vaccine) for hepatitis B immunization subcutaneously instead of intramuscularly. No medical history or concomitant medications were reported. On 30-May-2025, the patient received dose 1 of a hepatitis B vaccine [HEPLISAV-B (lot number, expiration date, NDC number, route, and site not available)]. On 30-Jun-2025, the patient received dose 2 of a hepatitis B vaccine [HEPLISAV-B (lot number 946062, expiration date 18-May-2027, and NDC number 43528-003-05)] subcutaneously in the right arm. No side effects were reported. No additional information was reported. Company Comment: The company assessed the event as non-serious.; Sender's Comments: The company assessed the event as non-serious.