The main conditions that prevent vaccination with the New Crown vaccine are previous severe allergic reactions, allergy to the components of the vaccine, untreated acute illnesses, poorly controlled chronic illnesses, and women during pregnancy. 1. First of all, those who are allergic to the active ingredients of the New Crown vaccine, the substances used in the production process, or those who have been previously allergic to the same type of vaccine. 2. Those who have had severe allergic reactions after previous vaccination, such as acute allergic reactions and angioneurotic edema. 3. Those who have uncontrolled epilepsy or other serious neurological diseases, such as transverse myelitis, demyelinating diseases and other neurological diseases. 4. Those who are currently acutely ill or in the process of fever, or those who are in the acute exacerbation phase of a chronic disease, or those who are suffering from uncontrolled severe chronic diseases. 5. Women during pregnancy.