Received Aug 28, 2025
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| DTAP | DTAP (INFANRIX) | GLAXOSMITHKLINE BIOLOGICALS | UNK | 5KR3R | — |
| DTAPHEPBIP | DTAP + HEPB + IPV (PEDIARIX) | GLAXOSMITHKLINE BIOLOGICALS | 2 | — | — |
| TDAP | TDAP (NO BRAND NAME) | UNKNOWN MANUFACTURER | 2 | — | — |
Infanrix administered instead of Boostrix; late second dose of Diphtheria, Tetanus and Pertussis vaccine; Potential late second dose of Pediarix; This non-serious case was reported by a other health professional via call center representative and described the occurrence of wrong vaccine administered in a 3-year-old male patient who received DTPa (Infanrix) (batch number 5KR3R, expiry date 06-FEB-2027) for prophylaxis. Co-suspect products included DTPa (Reduced antigen) (Boostrix) for prophylaxis, DTPa-HBV-IPV (Pediarix) for prophylaxis and DTPa (DTPa vaccine) for prophylaxis. Previously administered products included Pediarix (1st dose on 08-APR-2013), DTPa vaccine (1st dose on 03-JAN-2017) and Kinrix (received on 29-OCT-2018, lot number E337X and expiration date-07-November-2020). On 29-JUL-2025, the patient received Infanrix. The patient did not receive Boostrix. On 03-MAY-2016, the patient received the 2nd dose of Pediarix. On 03-JAN-2017, the patient received the 2nd dose of DTPa vaccine. On 03-MAY-2016, an unknown time after receiving Pediarix, the patient experienced drug dose administration interval too long (Verbatim: Potential late second dose of Pediarix). On 03-JAN-2017, the patient experienced drug dose administration interval too long (Verbatim: late second dose of Diphtheria, Tetanus and Pertussis vaccine). On 29-JUL-2025, the patient experienced wrong vaccine administered (Verbatim: Infanrix administered instead of Boostrix). The outcome of the wrong vaccine administered, drug dose administration interval too long and drug dose administration interval too long 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: 30-JUL-2025 Medical Assistant mentioned that a patient received Infanrix instead of Boostrix which led wrong vaccine administered. The patient received Pediarix and Diphtheria, Tetanus and Pertussis vaccine at longer time than recommended which led to lengthening of vaccination schedule. The reporter consented to follow up.