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BioNTech, Moderna, J&J Explore Omicron Versions of Shots

  • German biotech says new vaccine can be ready within 100 days
  • Moderna, BioNTech gain as drugmakers start work on new shots
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Explain This: How mRNA Covid Vaccines Work
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BioNTech SE, Moderna Inc. and Johnson & Johnson are working to adapt their Covid-19 vaccines to address the omicron variant, with the German partner of Pfizer Inc. saying it could have a new version ready within 100 days if necessary.

BioNTech said Monday that it has started development in order to move as quickly as possible. The first steps of developing a new vaccine overlap with the research necessary in order to evaluate whether the shot will be needed -- a process that both it and Moderna began last Thursday as news of the new variant began to spread around the world.