Covid-19 Vaccines: AstraZeneca VS. Sinovac

In the United Kingdom, the University of Oxford and AstraZeneca cooperated to develop a recombinant vaccine based on a modified chimp adenovirus. Sinovac Biotech, based in China, is another up-and-comer. The Sinovac vaccine employs more traditional antibody development, relying on inactivated infectious particles to deliver an immune response. In the United States, neither of these antibodies has been approved for routine or emergency use.

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