Received Aug 25, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| DTAPHEPBIP | DTAP + HEPB + IPV (PEDIARIX) | GLAXOSMITHKLINE BIOLOGICALS | 3 | UNK | — |
| TDAP | TDAP (BOOSTRIX) | GLAXOSMITHKLINE BIOLOGICALS | UNK | X449Y | — |
Incomplete vaccination schedule for Pediarix only two dose schedule; Maladministration of Boostrix instead of DTAP on a 5 year old patient; This non-serious case was reported by a nurse via call center representative and described the occurrence of wrong vaccine administered in a 5-year-old female patient who received DTPa (Reduced antigen) (Boostrix) (batch number X449Y, expiry date 20-OCT-2026) for prophylaxis. Co-suspect products included DTPa (Infanrix) for prophylaxis and DTPa-HBV-IPV (Pediarix) for prophylaxis. Previously administered products included Pediarix (received 1st dose on an unknown date), Pediarix (received 2nd dose on an unknown date) and Kinrix. On 01-AUG-2025, the patient received Boostrix, the patient did not receive Infanrix and the 3rd dose of Pediarix. On 01-AUG-2025, the patient experienced wrong vaccine administered (Verbatim: Maladministration of Boostrix instead of DTAP on a 5 year old patient). the patient experienced incomplete course of vaccination (Verbatim: Incomplete vaccination schedule for Pediarix only two dose schedule). The outcome of the wrong vaccine administered and incomplete course of vaccination 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: 01-AUG-2025 General response center (the colleague did not raise the adverse event report) transferred a registered nurse called about a situation where a five-year-old patient was given a tetanus, diphtheria, and pertussis vaccine (Boostrix) instead of Diphtheria, Tetanus, and acellular Pertussis (Infanrix), which led to wrong vaccine administered. Registered nurse looked for guidance or whether to revaccinate this patient. No further information was reported. The vaccine administration facility was the same as primary reporter. Till the time of reporting, the patient did not receive 3rd dose of Pediarix, which led to an incomplete course of vaccination.