By Region

Data Notes

Region Notes

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All Regions

April 27, 2021

Ohio

  • A recent low test positivity rate of 1.6% in Ohio was caused after the state reported 521,000 test results on April 22, 2021. Prior to that single-day dump of cases, the state’s 7-day moving average for its positivity rate stood at 6%. The positivity will remain low for another three days before spiking after the massive amount of tests falls out of the 7-day calculation.

April 21, 2021

Maine

  • 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.

New Jersey

  • New Jersey on April 21, 2021 reported a significant increase in its 7-day moving average for test positivity rate from 7.4% to 14.2%. The spike occurred today because 171,959 cases that were reported on April 13 fell out of the week-long period used to calculate the 7-day moving average.

April 20, 2021

Missouri

  • On April 17, 2021 Missouri corrected an error in its COVID-19 database that resulted in the removal of 11,454 cases that had been counted twice as positive test results. Missouri's 7-day moving average for its test positivity rate does not appear on the graphic because of the data correction, which rendered the 7-day moving average as a negative percentage. The 7-day average will reset when the current week-long reporting period ends on April 23.

April 8, 2021

Alaska

  • Declines in U.S. cases and deaths that appear in the Coronavirus Resource Center’s data on Mondays are the result of several states not reporting the information over the weekend. Those states are: Alaska, Connecticut, Idaho, Kansas, Louisiana, Michigan, North Carolina, Oklahoma, Rhode Island, Tennessee, Washington and Wyoming.

Connecticut

  • Declines in U.S. cases and deaths that appear in the Coronavirus Resource Center’s data on Mondays are the result of several states not reporting the information over the weekend. Those states are: Alaska, Connecticut, Idaho, Kansas, Louisiana, Michigan, North Carolina, Oklahoma, Rhode Island, Tennessee, Washington and Wyoming.

Idaho

  • Declines in U.S. cases and deaths that appear in the Coronavirus Resource Center’s data on Mondays are the result of several states not reporting the information over the weekend. Those states are: Alaska, Connecticut, Idaho, Kansas, Louisiana, Michigan, North Carolina, Oklahoma, Rhode Island, Tennessee, Washington and Wyoming.

Kansas

  • Declines in U.S. cases and deaths that appear in the Coronavirus Resource Center’s data on Mondays are the result of several states not reporting the information over the weekend. Those states are: Alaska, Connecticut, Idaho, Kansas, Louisiana, Michigan, North Carolina, Oklahoma, Rhode Island, Tennessee, Washington and Wyoming.

Louisiana

  • Declines in U.S. cases and deaths that appear in the Coronavirus Resource Center’s data on Mondays are the result of several states not reporting the information over the weekend. Those states are: Alaska, Connecticut, Idaho, Kansas, Louisiana, Michigan, North Carolina, Oklahoma, Rhode Island, Tennessee, Washington and Wyoming.

Michigan

  • Declines in U.S. cases and deaths that appear in the Coronavirus Resource Center’s data on Mondays are the result of several states not reporting the information over the weekend. Those states are: Alaska, Connecticut, Idaho, Kansas, Louisiana, Michigan, North Carolina, Oklahoma, Rhode Island, Tennessee, Washington and Wyoming.