An Expert Explains: AstraZeneca vaccine and the Covid-19 variants in India

26th May, 2021

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Serum Institute’s Covishield is India’s version of AZ vaccine. (AP Photo/Anupam Nath)


Two days ago, an analysis of real-world data from the UK was published as a pre-print (not yet peer-reviewed) detailing the effectiveness of Pfizer and AstraZeneca vaccines against two variants of the SARS-CoV-2 coronavirus: one, denoted as B.1.1.7, with its origins in Kent, UK, and the second, denoted as B.1.617.2, that was first detected in India.

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