Report #2836934

Received Apr 21, 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: Female
Age: 77 yrs
State: CA
Recovered: Unknown
Vaccinated: Apr 11, 2025
Onset: Apr 11, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HEP	HEP B (ENGERIX-B)	GLAXOSMITHKLINE BIOLOGICALS	UNK	7NX57	—

Symptoms (1)

Underdose

Symptom narrative

Underdose; immunization to an adult; This non-serious case was reported by a other health professional via call center representative and described the occurrence of underdose in a 77-year-old female patient who received HBV (Engerix B 10 mcg) (batch number 7NX57, expiry date 12-DEC-2026) for prophylaxis. On 11-APR-2025, the patient received Engerix B 10 mcg. On 11-APR-2025, an unknown time after receiving Engerix B 10 mcg, the patient experienced underdose (Verbatim: Underdose) and adult use of a child product (Verbatim: immunization to an adult). The outcome of the underdose and adult use of a child product were not applicable. Additional Information: GSK Receipt Date: 11-APR-2025 The reporter reported that gave a hepatitis b pediatrics immunization to an adult and they like to know the recommendations which led to Adult use of a child product and underdose. The Vaccine Administration Facility is the same as Primary Reporter.