The first type of vaccine is a vaccine that must be vaccinated by the country according to the current domestic disease epidemic situation and the general physical condition of children in our country. The vaccination fee is paid by the government, while other vaccines that do not belong to the first type of vaccine and require parents to pay for it belong to the second type of vaccine. 
The first type of vaccine protects against diseases that may cause greater harm to the child, while the second type of vaccine may not.
 parents generally believe that the second type of vaccine only prevents diseases other than the first type of vaccine.