A Study to Evaluate the Safety of Recombinant Herpes Zoster Vaccine for Healthy Individuals

Inclusion Criteria: * Age ≥ 40 years old on the day of enrollment, gender not limited. * Can provide legal proof of identity. * Be able to understand the experimental procedure and sign a written informed consent form, expressing agreement to participate in the experiment. * Be able to participate in all planned follow-up visits and comply with all trial procedures. * On the day of enrollment, the body temperature was less than 37.3 ℃ (axillary temperature). * Chronic disease patients need to be in a stable period of chronic disease. * Female and male participants of childbearing age agreed to adopt strict and effective contraceptive measures from the start of the trial to 6 months after full exemption. Exclusion Criteria: * Individuals with a history of herpes zoster in the past. * Individuals with a history of vaccination against chickenpox or shingles. * Individuals who have had close contact with patients with chickenpox or shingles in the past 2 years. * Women of childbearing age who have a positive urine pregnancy test, are breastfeeding, pregnant, or plan to become pregnant within 6 months after the start of the test and the full exemption period. * Individuals who are allergic to any component of the vaccine or have a history of other severe allergies. * Use immunoglobulin and/or any blood products within 3 months prior to administering the trial vaccine, or plan to use them during the trial period. * Have taken antipyretic, analgesic, or anti allergic drugs within…