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Report #2868897

Received Oct 28, 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
28 yrs
State
CA
Recovered
Unknown
Vaccinated
Oct 1, 2025
Onset
Oct 1, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
FLU3INFLUENZA (SEASONAL) (FLUZONE HIGH-DOSE)SANOFI PASTEUR1U8847CAOT / LA

Symptoms (3)

No adverse eventProduct administered to patient of inappropriate ageWrong product administered

Symptom narrative

gave the wrong fluzone hd, with no reported adverse event; Initial information received on 18-Oct-2025 regarding an unsolicited valid non-serious case received from a other health professional. This case involves a 28 years old male patient who was given the wrong Influenza Usp Trival A-B High Dose Subvirion Vaccine [Fluzone Hd], with no reported adverse event. The patient's past medical history, medical treatment(s), vaccination(s) and family history were not provided. On 01-Oct-2025, the patient received 0.5ml (dose 1) of suspect Influenza Usp Trival A-B High Dose Subvirion Vaccine, Suspension for injection in pre-filled syringe (lot U8847CA, expiry date 30-Jun-2026, Strength Fluzone High Dose and frequency once) via intramuscular route in the left arm for Immunization and gave the wrong fluzone hd, with no reported adverse event (incorrect dose administered) (latency same day). Action taken was 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.