The Conversation: How can scientists update coronavirus vaccines for omicron? A microbiologist answers 5 questions about how Moderna and Pfizer could rapidly adjust mRNA vaccines

The new Omicron variant has raised the question of whether current COVID-19 vaccines will provide sufficient protection against infection. If the virus has changed significantly, antibodies created by the original vaccine will no longer be able to recognise and defend against the new mutated variant. Consequentially, vaccines will need to be modified by swapping out the genetic code of the original spike protein for the one found on the new variant.

This article explores the scientific process behind updating mRNA vaccines including timelines and authorization procedures.

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How can scientists update coronavirus vaccines for omicron? A microbiologist answers 5 questions about how Moderna and Pfizer could rapidly adjust mRNA vaccines