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U.S. Department of Health & Human Services

07/30/2021 | Press release | Archived content

Percent of Delivered First Vaccine Doses Administered by U.S. States and Territories

As part of the National Strategy for the COVID-19 Response and Pandemic Preparedness pdf icon [24 MB, 200 Pages]external icon CDC is committed to making sure that safe, effective vaccines are distributed and administered as quickly as possible.

To help to understand vaccine administration CDC has created the map below to show the percentage of first doses of vaccines that have been administered in each jurisdiction from their supply. This information can be used to better understand how states are using their supply to initiate vaccination within their community.

Weekly Total Percentage of First Doses Administered Based on Jurisdiction Vaccine Supply

The majority of U.S. states and territories have administered at or above 84.7% of their first vaccine doses delivered.

Allocation

When a jurisdiction is allocated vaccine doses, the jurisdiction is allocated first and second doses at the same time.

  • First doses are available for ordering immediately;
  • second doses are available for ordering 2 or 3 weeks later, depending on the vaccine product.

However, vaccine orders and deliveries do not specify if the vaccine is to be administered as a first dose or a second dose. Jurisdictions are instructed to use the delivered supply (first and second doses combined) to best meet the current needs of their community.

Calculation

For the denominator used to calculate the percentages below, the number of doses delivered designated as 'first doses' is assumed to align with how the vaccine has been allocated nationally. To maintain inventory, some vaccine will always be kept in supply; so percentages are not expected to reach 100%. Please see the footnote for more information.

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