has role recombinant vaccine vector role vaccine component recombinant vaccine vector vaccine component Jie Zheng WEB: http://www.ema.europa.eu/docs/en_GB/document_library/Scientific_guideline/2009/09/WC500003856.pdf Vaccine vector that is a genetically engineered virus or bacterium used to deliver genetic code into the cells within the body. a vaccine component that uses a microbe (e.g., bacterium, virus, and parasitic organism) as a vector that is inserted with the DNA(s) of a heterologous protective antigen(s) to generate a "recombinant vector vaccine". The microorganism used as a vector generally has a stable non or low pathogenic phenotype for the species the vaccine is intended for. WEB: http://en.wikipedia.org/wiki/Vaccine WEB: http://www.biosafety.be/GT/Regulatory/Veterinary_vaccines/EMEA_000404en.pdf Oliver He recombinant vector vaccine vector