Maladministration of the AS01B Adjuvant of Shingrix Alone; Maladministration of the AS01B Adjuvant of Shingrix Alone; This non-serious case was reported by a nurse via call center representative and described the occurrence of inappropriate preparation of medication in a patient who received Herpes zoster (Shingrix) for prophylaxis. On 30-DEC-2024, the patient received the 2nd dose of Shingrix. On 30-DEC-2024, an unknown time after receiving Shingrix, the patient experienced inappropriate preparation of medication (Verbatim: Maladministration of the AS01B Adjuvant of Shingrix Alone) and inappropriate dose of vaccine administered (Verbatim: Maladministration of the AS01B Adjuvant of Shingrix Alone). The outcome of the inappropriate preparation of medication and inappropriate dose of vaccine administered were unknown. Additional Information: GSK Receipt Date: 30-DEC-2024 The reporter reported that a patient received Shingrix diluent alone without the powder portion, which led to an inappropriate preparation of medication and inappropriate dose of vaccine administered. The reporter believed this was patient’s Shingrix second dose. There was no patient’s information available, nor lot number or expiration date information either. The vaccine administration facility was the same as primary reporter.