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Report #2880800

Received Jan 6, 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
Female
Age
Age unknown
State
UT
Recovered
Unknown
Vaccinated
—
Onset
Dec 18, 2025
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
FLUN3INFLUENZA (SEASONAL) (FLUMIST)MEDIMMUNE VACCINES, INC.UNKYF3413B—

Symptoms (1)

Expired product administered

Symptom narrative

WE ADMINISTERED AN EXPIRED FLUMIST TO A PATIENT; A spontaneous report has been received from a physician. The report concerns a female patient (age not provided). No medical history was reported. No concomitant products were reported. The patient received Flumist (batch number(s) YF3413B) (expiration date(s) 15-DEC-2025), via unknown on an unknown date. The patient received 1 dose(s). On 18-DEC-2025, the patient experienced we administered an expired flumist to a patient (preferred term: Expired product administered). It is unknown if any action was taken with Flumist (flumist, influenza virus vaccine polyvalent, q/laiv). The outcome of the event(s) of we administered an expired flumist to a patient was unknown. The event was considered non-serious. Device Information: Combination Product Report: Yes Product As Reported: Flumist Brand Name: FLUMIST Product Role:Suspect Device Problem code:A24 - Adverse Event Without Identified Device or Use Problem Manufacturer Name:ASTRAZENECA Labeled for single use:No