The New Crown Vaccination Technical Guidelines (First Edition) suggests caution for people with acute exacerbations of chronic diseases, or uncontrolled severe chronic diseases, people with uncontrolled epilepsy and other severe neurological disorders (e.g., transverse myelitis, Guillain-Barre Syndrome, and demyelinating disorders, etc.). For people suffering from hypertension, it is recommended to judge whether it is possible to be vaccinated according to the situation: 1. Through lifestyle modification and/or medication, the blood pressure is lower than 140/90mmHg, and it is possible to be vaccinated. 2. Through lifestyle modification and/or medication, if the systolic blood pressure is ≥140mmHg and/or diastolic blood pressure is ≥90mmHg, but the systolic blood pressure is <160mmHg and the diastolic blood pressure is <100mmHg on the same day, the patient can be vaccinated. 3. Through lifestyle modification and/or medication, but systolic blood pressure ≥160mmHg and/or diastolic blood pressure ≥100mmHg, vaccination is suspended. For people with diabetes mellitus, it is recommended to judge whether it is possible to be vaccinated according to the situation: 1. Fasting blood glucose ≤13.9mmol/L through lifestyle modification and/or medication, it is possible to be vaccinated. 2. Patients with diabetes who currently have acute complications of diabetes (ketoacidosis, hyperosmolar state, lactic acidosis) or those who suffer from the above acute complications for less than 2 weeks after healing, vaccination is postponed. In principle, patients with hepatitis B who do not need medication and have normal liver function can be vaccinated with the New Crown vaccine. When you need to be vaccinated, you should read the informed consent form carefully and take the initiative to inform the medical staff of your health condition, so that the doctor can make a comprehensive evaluation and judge whether it is suitable to be vaccinated or not.