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Data Notes

General Notes

July 24, 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: Alabama, Alaska, Arkansas, 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, Vermont, U.S. Virgin Islands, Virginia, Washington, West Virginia, Wisconsin, and Wyoming.


Region Notes

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July 24, 2021

Florida

  • The data for July 23, 2021, includes the past week's worth of data 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.

July 17, 2021

Florida

  • The data for July 16, 2021, includes the past week's worth of data 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.

United States

  • The data for July 16, 2021, includes the past week's worth of data 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.

July 12, 2021

Hawaii

  • The Johns Hopkins Coronavirus Resource Center had been displaying a lower rate of vaccinations in Hawaii than what the state had been reporting because the CRC was collecting its data from the U.S. Centers for Disease Control and Prevention’s Vaccine Tracker. However, Hawaii has been reporting data via its state dashboard more quickly. Therefore, the Coronavirus Resource Center has successfully adjusted its method to extract data from the state that it could not previously access. The percentage of Hawaii’s population that is fully vaccinated has been updated to reflect the most up-to-date, higher number.

June 25, 2021

Alaska

  • Alaska's positivity rate dropped on Friday from 1.7% to -0.2% because of a daily decrease of 185,933 total tests. Excluding that unexplained decline, Alaska's positivity rate would be 1.5%.

June 11, 2021

California

  • Alameda County on June 11 lowered its COVID-19 death toll by 411 fatalities to 1,223 after local health officials changed how they count pandemic deaths to match California’s methodology. The state’s tally only includes fatalities in which COVID-19 has been declared the official cause of death. The county’s total included any deaths in which the deceased had tested positive for COVID-19.

June 3, 2021

Peru

  • Newly released data has caused a massive spike in the total number of reported fatalities in Peru, from around 70,000 to around 180,000, on the Coronavirus Resource Center. The resource center tracks data for Peru from two official sources: a dashboard managed by the nation’s Division of Intelligence and a situation report maintained by Peru’s Ministry of Health.

May 25, 2021

New Mexico

  • On May 24, 2021 New Mexico added about 100 deaths to the state's total COVID-19 fatalities after health officials had cleared a backlog of death certificates pertaining to deceased New Mexico residents living in other states, incomplete or inaccurate information, and other reasons.

May 18, 2021

Alabama

  • Alabama reported that a recent spike in the number of total tests reported was caused by backlogs the state recently processed from two large facilities over the last three to four days. The surge in cases applies to past dates, not the state’s current situation. We will provide a clearer explanation as the state provides more information.

Mississippi

  • Mississippi’s seven-day rolling average for test positivity rate jumped from nearly 14% to 308% because for every day of the past week the state has reported either zero or less than 200 tests. Typically, the state reports at least 10,000 tests over seven days. We are seeking answers from Mississippi officials about the abrupt decline.