The race for coronavirus vaccines: a graphical guide
More than 90 vaccines are being developed against SARS-CoV-2 by research teams in companies and universities across the world. Researchers are trialling different technologies, some of which haven’t been used in a licensed vaccine before. At least six groups have already begun injecting formulations into volunteers in safety trials; others have started testing in animals. Nature’s graphical guide explains each vaccine design. SARS-CoV-2 vaccines: a variety of approaches All vaccines aim to expose the body to an antigen that won’t cause disease, but will provoke an immune response that can block or kill the virus if a person becomes infected. Virus vaccines At least seven teams are developing vaccines using the virus itself, in a weakened or inactivated form. Viral-vector vaccines Around 25 groups say they are working on viral-vector vaccines. Nucleic-acid vaccines Protein-based vaccines Many researchers want to inject coronavirus proteins directly into the body. Industry trials
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