摘要
By genetically tweaking the constituent live virus,scientists have created a vaccine against influenza in which the virus is capable of activating the immune system but cannot replicate in healthy cells--an approach that may become more widely used for generating live virus vaccines adapted
By genetically tweaking the constituent live virus,scientists have created a vaccine against influenza in which the virus is capable of activating the immune system but cannot replicate in healthy cells--an approach that may become more widely used for generating live virus vaccines adapted to other viruses.
