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Understanding and Explaining Viral Vector COVID-19 Vaccines

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www.cdc.gov

COVID-19 viral vector vaccine webpageMany vaccines use a weakened or inactivated form of the target pathogen to trigger an immune response.

Viral vector vaccines use a different virus as a vector instead, which delivers important instructions (in the form of a gene) to our cells.

For COVID-19 vaccines, a modified virus delivers a gene that instructs our cells to make a SARS-CoV-2 antigen called the spike protein.

Read more on cdc.gov
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