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Report #2871967

Received Nov 10, 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
Unknown
Age
Age unknown
State
MO
Recovered
Unknown
Vaccinated
—
Onset
—
Days to onset
—
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
HIBVHIB (ACTHIB)SANOFI PASTEURUNK—OT

Symptoms (2)

No adverse eventProduct preparation error

Symptom narrative

administered the acthib to the patient, it was mixed with a sterile diluent instead of the saline diluent with no reported adverse event; Initial information received on 04-Nov-2025 regarding an unsolicited valid non-serious case received from a other health professional. This case involves an unknown age and gender patient who received HIB (PRP/T) vaccine [ACT-HIB] and it was mixed with a sterile diluent instead of the saline diluent with no reported adverse event. The patient's past medical history, medical treatment(s), vaccination(s) and family history were not provided. On an unknown date, the patient received an unknown dose of HIB (PRP/T) vaccine Powder and solvent for solution for injection (strength, expiry date and lot number not reported) via unknown route in unknown administration site for Immunization and it was mixed with a sterile diluent instead of the saline diluent with no reported adverse event (product preparation error) (same day latency). 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.