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Report #2838910

Received Apr 30, 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
2 yrs
State
UT
Recovered
Unknown
Vaccinated
Apr 24, 2025
Onset
Apr 24, 2025
Days to onset
0
Hospital days
—

Vaccines (1)

TypeNameManufacturerDoseLotRoute / Site
TDAPTDAP (BOOSTRIX)GLAXOSMITHKLINE BIOLOGICALSUNKl5229—

Symptoms (2)

Product administered to patient of inappropriate ageWrong product administered

Symptom narrative

accidental administration of Boostrix instead of Infanrix; accidental administration of Boostrix; accidental administration of Boostrix to 2 year old; This non-serious case was reported by a nurse via call center representative and described the occurrence of wrong vaccine administered in a 2-year-old male patient who received DTPa (Reduced antigen) (Boostrix) (batch number l5229, expiry date 19-APR-2027) for prophylaxis. Co-suspect products included DTPa (Infanrix) for prophylaxis. Previously administered products included Dtap vaccine (received 3 doses of Dtap series on an unknown date). On 24-APR-2025, the patient received Boostrix. On an unknown date, the patient received Infanrix. On 24-APR-2025, an unknown time after receiving Boostrix and not applicable after receiving Infanrix, the patient experienced wrong vaccine administered (Verbatim: accidental administration of Boostrix instead of Infanrix), accidental underdose (Verbatim: accidental administration of Boostrix) and inappropriate age at vaccine administration (Verbatim: accidental administration of Boostrix to 2 year old). The outcome of the wrong vaccine administered, accidental underdose and inappropriate age at vaccine administration were not applicable. This report is made by GSK without prejudice and does not imply any admission or liability for the incident or its consequences. Additional Information: GSK receipt date: 24-APR-2025 A registered nurse called in to request data about the accidental administration of Boostrix instead of Infanrix as the fourth dose in the Dtap series for a patient, which led to wrong vaccine administered, accidental underdose and inappropriate age at vaccine administration. First the requested safety data and then they requested recommendations. The vaccine administration facility was the same as primary reporter.