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JHU has stopped collecting data as of

03 / 10 / 2023

After three years of around-the-clock tracking of COVID-19 data from...

By Region

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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January 24, 2023


  • Maine reported 51 deaths from January 10 - January 14, 2023, but only one death from January 17 - January 21, 2023. The reason for the decrease is unclear, but our data collection matches the headline numbers published by the Maine Department of Health.

December 19, 2022


  • Maine reported uncharacteristically high death counts from December 6-9, 2022. This is currently under investigation.

April 19, 2022


February 22, 2022


November 12, 2021


  • On November 12, 2021, Maine's dashboard indicates that it updated but no data had changed since the day prior. No reason was listed on their dashboard.

April 21, 2021


  • Maine reported a large number of new tests (27,364) on April 21, 2021, causing the state's 7-day moving average for its test positivity rate to display a steep decline from 7.6% to 4.7%. The large batch of tests most likely represents data from the past few days since the state had not reported any new tests since April 16.