Live attenuated vaccines
Live attenuated vaccines are antigenic substances composed of a viable (living) pathogen, such as a virus or bacterium. The pathogen is altered so that it is less virulent or avirulent (attenuated). When administered, they elicit protective immunity against the pathogen.
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News and Comment
Research Highlights |Nature Reviews Clinical Oncology 12, 128
Comments and Opinion |Nature Biotechnology 31, 1082–1085