Since the late 1790s, vaccines have been based on exposing patients to a weakened, similar or safe portion of a dangerous virus to provoke an immune response, and while some COVID-19 vaccines are based on this proven approach, others are based on DNA or a genetically modified adenovirus. But vaccines based on messenger RNA, which are easier to deliver than DNA-based vaccines, appear to be the winners so far in the COVID-19 vaccine race, and mRNA is likely to be the basis of many future vaccines for infectious diseases and even for cancer.
RNA technology shifts the vaccine paradigm
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