Getting full FDA approval for a vaccine is a time consuming process that can take up to 10 months under normal circumstances. Both Pfizer and Moderna have applied for special designations to fast track approval for a serious and unmet medical need, which means it could take 6 months.

Pfizer submitted its application on May 7 and was granted special priority review status on July 16.

Moderna submitted its application on June 1 and has not yet been granted priority review.