The new coronavirus vaccine, which is the new coronavirus vaccine, is usually given at intervals of 14 days or more from other vaccines, such as hepatitis B vaccine. However, for patients with traumatic injuries or bites from dogs or cats, there is no restriction on the 14-day interval when tetanus vaccine, rabies vaccine, or immunoglobulin are required to be administered immediately. In addition, these two vaccines are multi-dose vaccinations, and there is a certain time interval between doses.1. New coronavirus vaccine: The interval between two doses of the new coronavirus vaccine should not be less than 21 days and not more than 56 days. If there are some special reasons for exceeding the required vaccination time, usually there is no need to revaccinate the first dose, and the second dose can be given as soon as possible. In addition, if patients have acute allergic reactions or other contraindications after the first vaccination, the second vaccination is usually not recommended; 2. Hepatitis B Vaccine: Hepatitis B vaccine consists of three injections, and according to the program of “0-1-6”, infants should receive the first vaccination within 24 hours after birth, and then the vaccination should be given at the age of 1 month, 6 months and 6 months respectively. The first injection is given to infants within 24 hours of birth, and then at 1 month and 6 months of age. If the vaccination is for adults, such as doctors or nurses contaminated by blood or body fluids with hepatitis B virus, it is necessary to treat the locally exposed wounds and then urgently inject the hepatitis B vaccine, followed by injection at the 1st month and the 6th month. However, it should be noted that people who are allergic to the vaccine components and patients suffering from more severe acute diseases, Guillain-Barré syndrome, some chronic diseases, autoimmune diseases, and patients in acute exacerbation of chronic diseases should avoid vaccination.