ABC News November 23, 2020

How were Pfizer and Moderna able to develop a COVID-19 vaccine so quickly?

Name: How were Pfizer and Moderna able to develop a COVID-19 vaccine so quickly?
Uploaded: 2020-11-23T16:57:36
Duration: PT100.0S
Description: Dr. Jen Ashton answers viewers’ coronavirus questions.

Dr. Jen Ashton answers viewers’ coronavirus questions.

How were Pfizer and Moderna able to develop a COVID-19 vaccine so quickly?

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