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Report #2883710

Received Feb 2, 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
IL
Recovered
Unknown
Vaccinated
Jan 29, 2026
Onset
Jan 29, 2026
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
DTAPIPVHIBDTAP + IPV + HIB (PENTACEL)SANOFI PASTEURUNK—OT

Symptoms (1)

Wrong product administered

Symptom narrative

accidentally gave DTAP instead of TDAP to an adult patient with no reported adverse event; Initial information received on 29-Jan-2026 regarding an unsolicited valid non-serious case received from a other health professional. This case involves Adult and unknown gender patient who was accidentally given Diphtheria/Tetanus/5 Hybrid AC Pertussis/IPV(VERO)/HIB(PRP/T) Vaccine [Pentacel (Vero)] instead of Tdap with no reported adverse event. The patient's past medical history, medical treatment(s), vaccination(s) and family history were not provided. On 29-Jan-2026, the patient received a unknown dose of suspect Diphtheria/Tetanus/5 Hybrid AC Pertussis/IPV(VERO)/HIB(PRP/T) Vaccine Suspension for injection (strength, route, batch number and expiry date: unknown) in unknown administration site for prophylactic vaccination instead of Tdap (wrong product administered) (latency: same day). Information on batch number and expiry date corresponding to the one at time of event occurrence was requested. 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.