Report #2871404

Received Nov 7, 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: 0.3 yrs
State: CA
Recovered: Unknown
Vaccinated: Oct 7, 2025
Onset: Oct 7, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
HIBV	HIB (HIBERIX)	GLAXOSMITHKLINE BIOLOGICALS	UNK	35FA4	—

Symptoms (1)

Product preparation issue

Symptom narrative

Diluent only administration; Diluent only administration; This non-serious case was reported by a other health professional via call center representative and described the occurrence of inappropriate preparation of medication in a 3-month-old male patient who received Hib (Hiberix) (batch number 35FA4) for prophylaxis. On 07-OCT-2025, the patient received Hiberix. On 07-OCT-2025, an unknown time after receiving Hiberix, the patient experienced inappropriate preparation of medication (Verbatim: Diluent only administration) and inappropriate dose of vaccine administered (Verbatim: Diluent only administration). The outcome of the inappropriate preparation of medication and inappropriate dose of vaccine administered were not applicable. Additional Information: GSK Receipt Date: 24-OCT-2025 The patient received only the Hiberix diluent. No further details were provided.