A gene-spliced vaccine involves the use of genetic engineering techniques to create a vaccine. There are various synonyms that can be used to refer to this type of vaccine. One of the most common is recombinant vaccine, which refers to the use of recombinant DNA technology to create the vaccine. Some other common synonyms include genetically engineered vaccine, genetically modified vaccine, and gene-edited vaccine. Additionally, some specific terms may be used to describe different types of gene-spliced vaccines, such as mRNA vaccines or viral vector vaccines. Regardless of the specific term used, gene-spliced vaccines represent an innovative approach to vaccination that shows great promise in combating various diseases.