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Data Notes

General Notes

September 14, 2021

  • Reduced counts in U.S. cases and deaths are the result of states and territories not reporting the information for some or all of the weekend. Those states and territories are: Alaska, Colorado, Connecticut, District of Columbia, Florida, Georgia, Guam, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Montana, Nebraska, Nevada, New Hampshire, New Mexico, North Carolina, Northern Mariana Islands, Oklahoma, Rhode Island, South Carolina, South Dakota, Tennessee, Utah, U.S. Virgin Islands, Virginia, Washington, West Virginia, Wisconsin, and Wyoming. Typically, these states" Monday updates include the weekend totals.


Region Notes

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October 21, 2021

Oklahoma

  • On October 19, 2021, Oklahoma increased the cumulative deaths to better align with CDC reporting. This resulted in 1,138 deaths being reported on this date, though those deaths did not all occur on that date.

October 14, 2021

Arizona

  • On October 13, 2021, Arizona no longer reports people tested, and has modified how they report total tests. The JHU CRC is currently modifying its process to ingest this data. As a result, the testing data appears to drop on this date.

October 2, 2021

United States

  • On October 2, 2021, the CDC began reporting booster doses among Total Vaccine Doses for some states.

October 1, 2021

Florida

  • The data for October 1, 2021, includes multiple days of reporting from Florida. Florida only reports COVID-19 data once per week via their COVID-19 Weekly Situation Report, and does not provide a daily back-distribution of Case or Death data. The CDC also supplies some daily reporting for Florida. While not all of Florida's Cases/Deaths were diagnosed/occurred on October 1, we are unable to break them out to dates within the week. This contributes to the unusually large number of daily cases for October 1 in the US.

United States

  • The data for October 1, 2021, includes multiple days of reporting from Florida. Florida only reports COVID-19 data once per week via their COVID-19 Weekly Situation Report, and does not provide a daily back-distribution of Case or Death data. The CDC also supplies some daily reporting for Florida. While not all of Florida's Cases/Deaths were diagnosed/occurred on October 1, we are unable to break them out to dates within the week. This contributes to the unusually large number of daily cases for October 1 in the US.

September 30, 2021

Alabama

  • In September, 2021, the JHU Coronavirus Resource Center began collecting and reporting testing data for Florida and Alabama from Health and Human Services (HHS). These states ceased reporting cumulative testing counts publicly, resulting in the need to seek an alternative source. The HHS data undergoes retrospective reporting, so historic data may change from reported data.

Florida

  • In September, 2021, the JHU Coronavirus Resource Center began collecting and reporting testing data for Florida and Alabama from Health and Human Services (HHS). These states ceased reporting cumulative testing counts publicly, resulting in the need to seek an alternative source. The HHS data undergoes retrospective reporting, so historic data may change from reported data.

United States

  • In September, 2021, the JHU Coronavirus Resource Center began collecting and reporting testing data for Florida and Alabama from Health and Human Services (HHS). These states ceased reporting cumulative testing counts publicly, resulting in the need to seek an alternative source. The HHS data undergoes retrospective reporting, so historic data may change from reported data.

September 25, 2021

Florida

  • The data for September 24, 2021, includes multiple days of reporting from Florida. Florida only reports COVID-19 data once per week via their COVID-19 Weekly Situation Report, and does not provide a daily back-distribution of Case or Death data. The CDC also supplies some daily reporting for Florida. While not all of Florida's Cases/Deaths were diagnosed/occurred on September 17, we are unable to break them out to dates within the week. This contributes to the unusually large number of daily cases for September 17 in the US.

United States

  • The data for September 24, 2021, includes multiple days of reporting from Florida. Florida only reports COVID-19 data once per week via their COVID-19 Weekly Situation Report, and does not provide a daily back-distribution of Case or Death data. The CDC also supplies some daily reporting for Florida. While not all of Florida's Cases/Deaths were diagnosed/occurred on September 17, we are unable to break them out to dates within the week. This contributes to the unusually large number of daily cases for September 17 in the US.