LONDON — The University of Oxford and AstraZeneca's coronavirus vaccine was 90 percent effective in preventing COVID-19 In studies of more than 22,000 people in the UK and Brazil, AstraZeneca said in a November 23 press release.
Like Russia's Sputnik V vaccine and unlike Pfizer and Moderna's mRNA vaccines, the AstraZeneca-Oxford vaccine uses a modified adenovirus as a vector.
This animation explains how the AstraZeneca-Oxford vaccine works.
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