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Report #2891255

Received Mar 31, 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
Unknown
Age
Age unknown
State
NY
Recovered
Unknown
Vaccinated
Onset
Days to onset
Hospital days

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
YFYELLOW FEVER (YF-VAX)SANOFI PASTEURUNKUK118AA

Symptoms (2)

Expired product administeredNo adverse event

Symptom narrative

having an expired live vaccine applied with no adverse event; Initial information received on 02-Mar-2026 regarding an unsolicited valid non-serious case received from a consumer. This case involves a patient of unknown age and gender who had an expired live vaccine applied with no adverse event with yellow fever vaccine (YF VAX). The patient's past medical history, past drugs, vaccination(s), family history, concomitant medications were not provided. On an unknown date, the patient received yellow fever vaccine (YF VAX) solution for injection as a single dose for Prophylactic vaccination (Immunisation) with strength and route unknown. The patient had an expired live vaccine applied with no adverse event (Expired product administered, onset date: unknown, latency: same day) (batch: UK118AA, expiry date: 30-Sep-2025). Action taken: Not applicable. This suspected adverse reaction report is submitted and classified as a medication error solely and exclusively to ensure the marketing authorization holder's compliance with the requirements set out in the Directive 2001/83/EC and Module VI of the Good Pharmacovigilance Practices. The classification as a medical error is in no way intended, nor should it be interpreted or construed as an allegation or claim made by the marketing authorization holder that any third party has contributed to or is to be held liable for the occurrence of this medication error.

Medical history

Comments: NONE