Circumstances that preclude vaccination with the New Crown vaccine include acute exacerbation of chronic diseases, pregnancy, previous history of severe allergies, uncontrolled severe neurological diseases, etc. 1. Those who are allergic to the active ingredients of the vaccine, any of the inactive ingredients, substances used in the production process, or those who have developed an allergy during previous administration of the same type of vaccine; and those who have had a previous severe allergic reaction to the vaccine (e.g., acute anaphylactic reaction, angioneurotic edema, respiratory distress, etc.). 2. Those with uncontrolled epilepsy and other serious neurological diseases (e.g. transverse myelitis, Guillain-Barre syndrome, demyelinating diseases, etc.). 3. Those who are experiencing fever, or suffering from acute illness, or acute exacerbation of chronic diseases, or uncontrolled severe chronic diseases. 4. Women during pregnancy.