Report #2852806

Received Aug 5, 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: 67 yrs
State: CA
Recovered: Unknown
Vaccinated: Jul 22, 2025
Onset: Jul 22, 2025
Days to onset: 0
Hospital days: —

Vaccines (1)

Type	Name	Manufacturer	Dose	Lot	Route / Site
RSV	RSV (AREXVY)	GLAXOSMITHKLINE BIOLOGICALS	UNK	957D4	—

Symptoms (1)

Product preparation issue

Symptom narrative

Only diluent administered.; Only diluent administered.; This non-serious case was reported by a pharmacist via call center representative and described the occurrence of inappropriate preparation of medication in a 67-year-old female patient who received RSVPreF3 adjuvanted (Arexvy) (batch number 957D4, expiry date 27-NOV-2026) for prophylaxis. On 22-JUL-2025, the patient received Arexvy. On 22-JUL-2025, an unknown time after receiving Arexvy, the patient experienced inappropriate preparation of medication (Verbatim: Only diluent administered.) and inappropriate dose of vaccine administered (Verbatim: Only diluent administered.). The outcome of the inappropriate preparation of medication and inappropriate dose of vaccine administered were not applicable. Additional Information: GSK Receipt Date: 24-JUL-2025 The pharmacist reported that they did not mix it just gave the diluent, which led to inappropriate preparation of medication and inappropriate dose of vaccine administered. Reporter mentioned it was administered on 22-JUL-2025. No further details provided. The vaccine administration facility was the same as primary reporter.