Q&A: What you need to know about the Moderna and Pfizer coronavirus vaccines


Q: What will happen next?

A: Companies will apply to federal regulators for authorization to provide the vaccines more broadly. FDA regulators will review the effectiveness, safety and manufacturing of each vaccine. An FDA advisory committee will vote on whether to recommend that the agency greenlight each vaccine.

In December:

● The FDA may authorize one or both vaccines.

● One or two days later, a Centers for Disease Control and Prevention advisory committee will discuss prioritizing vaccines for high-risk groups.

End of 2020:

● The government projects that Pfizer and Moderna will provide 40 million doses, enough for 20 million people, by the end of the year.