Data Notes

Multiple states with reporting interruptions due to Thanksgiving holiday: Please see list here: https://github.com/CSSEGISandData/COVID-19/issues/6304

On October 27-28, 2022, the U.S. Virgin Islands did not update due to flash flooding.

On June 20, 2022, ten states that would typically report on Monday did not report due to Juneteenth holiday: Louisiana also failed to update June 17, 2022 in observance of the holiday. Full list here: https://github.com/CSSEGISandData/COVID-19/issues/5828

The Coronavirus Resource Center temporarily displayed an incorrect increase in COVID-19 deaths and cases in the United States on Tuesday, April 5, due to the misplacement of Kentucky’s weekly totals into the daily update.

On November 11, 2021, a number of locations did not update on November 11 in acknowledgement of local holidays. These include:

U.S. States and Territories: Alaska; DC; Georgia; Guam; Idaho; Illinois; Louisiana; Massachusetts; Mississippi; Missouri; Montana; Nevada; New Hampshire; New Mexico; North Carolina; Northern Mariana Islands; Oklahoma; Oregon; Rhode Island; South Carolina; South Dakota; Tennessee; Utah; Virgin Islands; Washington; Wyoming

International: Belgium

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

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.

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.

The data for September 17, 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.