Prognosis

Moderna Offers U.S. Fail-Safe on Vaccines If Pfizer Falls Short

  • Government has option for 400 million doses at $16.50 each
  • Added doses could roll out starting in April, Moderna says

A participant in a Phase 3 COVID-19 vaccine clinical trial sponsored by Moderna gets a shot during the trial.

Photographer: Paul Hennessy/AP
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Moderna Inc. could offer a fail-safe option that will allow the U.S. to get enough Covid-19 shots to inoculate most Americans if the government can’t reach an agreement to quickly buy more vaccine from Pfizer Inc., which plans to honor its contracts with other countries.