The U.S. Food and Drug Administration has introduced two revisions pertaining to the number of doses per vaccine vial available for the Moderna COVID-19 vaccine. 

In its first revision, the agency mentions the number of doses per vial for the vials that are available at present, stating that the maximum number of extractable doses is 11, with a range of 10-11 doses. The second revision mentions about the availability of an additional vial wherein each vial contains a maximum of 15 doses, having a range of 13-15 doses. The revisions are aimed at helping provide more vaccine doses to the people and ramp up vaccinations… (FDA, April 1, 2021)