Received Apr 17, 2026
| Type | Name | Manufacturer | Dose | Lot | Route / Site |
|---|---|---|---|---|---|
| TDAP | TDAP (BOOSTRIX) | GLAXOSMITHKLINE BIOLOGICALS | UNK | TD2FD | — |
accidentally got Boostrix instead of their corresponding 4th dose of Infanrix; Inappropriate age at vaccine administration; 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 15-month-old female patient who received DTPa (Reduced antigen) (Boostrix) (batch number TD2FD, expiry date 31-MAY-2026) for prophylaxis. Co-suspect products included DTPa (Infanrix) for prophylaxis. On 02-APR-2026, the patient received Boostrix. The patient did not receive Infanrix. On 02-APR-2026, an unknown time after receiving Boostrix, the patient experienced wrong vaccine administered (Verbatim: accidentally got Boostrix instead of their corresponding 4th dose of Infanrix) and inappropriate age at vaccine administration (Verbatim: Inappropriate age at vaccine administration). The outcome of the wrong vaccine administered 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: 08-APR-2026 The batch number was not provided and a request for this information has been made.