expired dose administered; This non-serious case was reported by a other health professional via call center representative and described the occurrence of expired vaccine used in a 1-year-old female patient who received Hib (Hiberix) (expiry date 12-NOV-2024) for prophylaxis. On 06-DEC-2024, the patient received Hiberix. On 06-DEC-2024, an unknown time after receiving Hiberix, the patient experienced expired vaccine used (Verbatim: expired dose administered). The outcome of the expired vaccine used was unknown. Additional Information: GSK receipt date: 06-DEC-2024 The clinic supervisor reported that an expired dose of Hiberix was administered to a patient today (on the day of reporting) which led to, expired vaccine used. The reporter did not have lot number at the time of the call. The vaccine administration facility was the same as primary reporter.