Contraindications to vaccination regarding the new crown vaccine are mainly the following: 1. vaccination is prohibited for those who develop allergies after the first injection; 2. vaccination is prohibited for those who are allergic to certain components of the vaccine; 3. vaccination is required for those with acute diseases, regardless of whether they are in the febrile period or in the acute attack of chronic diseases, after they have recovered; 4. vaccination is not recommended for pregnant women. Content source: Dr. You Lai