Safety and Efficacy of Inactivated SARS-CoV-2 Vaccine in Immune-related Myopathy (Myasthenia Gravis and Inflammatory Myopathy) Patients ：a Prospective Observational Study

Inclusion Criteria: 1. Complete behavioral ability 2. Voluntary willingness to vaccinate 3. Clinically confirmed immune-related myopathy (myasthenia gravis and inflammatory myopathy) and immune-related myopathy (myasthenia gravis and inflammatory myopathy)was stable 4. Informed consent to the research Exclusion Criteria: 1. No independent behavior ability 2. Vaccination is contraindicated 3. Other diseases that significantly affect the immune function 4. Other diseases that may significantly affect immune function are being treated 5. Vaccination contraindication was found during the study observation period 6. Other diseases that may significantly affect immune function were diagnosed during the study observation period 7. Treatments for other diseases that may significantly affect immune function were initiated during the study observation period 8. Refused regular follow-up