At present, there are new crown vaccine’s, and there are many kinds of them, such as inactivated vaccine, recombinant protein vaccine, adenovirus vector vaccine, etc. Specific vaccine types are described as follows: 1. Adenovirus vector vaccine refers to the vaccine made by inserting the antigenic gene of the virus into the non-toxic adenovirus vector. After the adenovirus vector enters into the cell, it translates the antigenic proteins by using the protein expression system of the cell, which stimulates the immune response of the body and produces antibodies. 2. Inactivated vaccine is a common traditional vaccine, which refers to the vaccine made by inactivating a complete virus with infectious properties, so that it loses its ability to infect but retains its immunogenicity, and is purified. 3. Recombinant protein vaccine is a vaccine made by recombinantly carrying the antigenic gene of a virus in a vector, and then transforming the gene expression vector into the recipient cells, using the protein expression system of the recipient cells to produce antigenic proteins, and then making the vaccine after purification. 4. After formaldehyde treatment of live attenuated vaccine pathogen, the structure of A subunit (toxicity subunit) is changed and the toxicity is weakened, but the activity of B subunit (conjugation subunit) remains unchanged, that is to say, a kind of vaccine that maintains antigenicity. 5. Nucleic acid vaccine is an exogenous gene (DNA or RNA) coding for a certain antigenic protein is directly introduced into animal cells and synthesizes the antigenic protein through the expression system of the host cells, inducing the host to produce an immune response to the antigenic protein, in order to achieve the purpose of preventing and treating diseases.