Ohio

On March 5, 2021, Ohio did not update its **Total antigen tests (specimens)**, **Positive antigen tests (specimens)**, or **Positive PCR tests (specimens)** before the time of our daily update.

On March 2, 2021, Ohio changed the way that they report COVID-19 deaths, and updates their mortality figures twice a week as death certificate information is received and verified from the National Center for Health Statistics. As a result of this change, Deaths (confirmed + probable) decreased from 17,346 to 17,189 on March 2, 2021. To allow our data quality team time to evaluate this change, we did not record this change on March 2, 2021, and backfilled our timeseries on March 3, 2021.

On March 2, 2021, Ohio's **Deaths (confirmed and probable)**, **Deaths (confirmed)**, and **Deaths (probable)** were missing from their data dashboard, potentially due to a change in death reporting. The state Department of Health will henceforth be updating mortality figures twice a week as death certificate information is verified by the National Center for Health Statistics. As a result, we were unable to update these metrics.

On February 25, 2021, Ohio did not provide updated figures for Total Antigen Tests, Positive Antigen Tests, Positive Tests (PCR).

On February 18, 2021, Ohio's [notice about reconciling death numbers](https://covidtracking.com/data/state/ohio/notes) was still posted on the dashboard.

On February 10, 2021, Ohio [announced](https://odh.ohio.gov/wps/portal/gov/odh/media-center/odh-news-releases/odh-news-release-02-10-20) that up to 4,000 COVID-19 deaths were underreported in the state’s reporting system and on their COVID-19 dashboard. These deaths will be added to their counts over the week on February 11, 2021. As a result, new deaths will be substantially higher than normal throughout this period. We urge caution when interpreting data from this period. Our data quality team will continue to investigate how best to handle the addition of these death. Approximately 650 of the deaths reported on February 11, 2021, 2500 of the deaths reported on February 12, 2021, and 1125 of the deaths reported on February 13, 2021 are a result of this reconciliation. On February 15, 2021, Ohio noted that they were continuing to reconcile deaths through a deep review of data which may result in fluctuations in death data.

On February 13, 2021, Ohio posted a notice on their [dashboard](https://coronavirus.ohio.gov/wps/portal/gov/covid-19/dashboards/overview/) advising that ODH is currently reconciling COVID-19 **deaths**, including about 1,125 in today's count.

On February 10, 2021, Ohio announced that up to 4,000 COVID-19 deaths were underreported in the state’s reporting system and on their COVID-29 dashboard. These deaths will be added to their counts over the week on February 11, 2021. As a result, new deaths will be substantially higher than normal throughout this period. We urge caution when interpreting data from this period. Our data quality team will continue to investigate how best to handle the addition of these death. Approximately 650 of the deaths reporting on February 11, 2021, and 2500 of the deaths reported on February 12, 2021 are a result of this reconciliation.

On February 10, 2021, Ohio [announced](https://odh.ohio.gov/wps/portal/gov/odh/media-center/odh-news-releases/odh-news-release-02-10-20) that up to 4,000 COVID-19 deaths were underreported in the state’s reporting system and on their COVID-29 dashboard. These deaths will be added to their counts over the week on February 11, 2021. As a result, new deaths will be substantially higher than normal throughout this period. We urge caution when interpreting data from this period. Our data quality team will continue to investigate how best to handle the addition of these deaths.

On January 21st, 2021, the state of OH did not update their positive tests PCR metric that we retrieve from Long Calculations

On December 29, 2020, Ohio provided a timeseries of Total Tests (PCR), Positive Tests (PCR), Total Antigen Tests, and Positive Antigen Tests. The totals for PCR from the download did not initially match the dashboard because of a lag, but starting on January 6, 2021, the download matched the dashboard. We are backfilling all 4 metrics from this download, which will result in the addition of three new metrics (positive tests PCR, positive tests antigen, total tests antigen) and a full timeseries for Total Tests (PCR), enabling a totalTestResults switch.

On January 1, 2021, Alaska, Connecticut, Kentucky, Louisiana, Massachusetts, Michigan, Minnesota, the Northern Mariana Islands, North Carolina, North Dakota, Ohio, South Carolina, South Dakota, Utah, and Vermont did not update their data, presumably due to the New Years holiday.

On December 25, 2020, Ohio announced on their [COVID-19 dashboard](https://coronavirus.ohio.gov/wps/portal/gov/covid-19/dashboards/overview/) that there would be no update to their data on December 25, 2020 due to the holiday. Additionally, they noted that the data for December 26, 2020 will include numbers from both December 25, 2020 and December 26, 2020.

On December 25, 2020, Alaska, California, Connecticut, the District of Columbia, Idaho, Kansas, Louisiana, Massachusetts, Michigan, Minnesota, North Carolina, North Dakota, New Hampshire, Ohio, Rhode Island, South Carolina, South Dakota, Utah, and Vermont did not update their data due to the Christmas holiday.

On December 21, 2020, Ohio did not update their Currently hospitalized, Currently in ICU, or Currently on Ventilator by the time of our daily update.

On December 19, 2020, Ohio announced that the case numbers for December 19, 2020 may be slightly lower than otherwise due to a technical issue.

On December 8, 2020, Ohio announced that their data for December 8, 2020 includes a backlog of roughly 13,000 antigen tests dating back to November 1, 2020. As a result not all new Probable cases and Cases (confirmed plus probable) were reported in the previous 14 hour period.

Starting on November 18, 2020 through the current day, Ohio has reported on their [COVID-19 page](https://coronavirus.ohio.gov/wps/portal/gov/covid-19/home)that their data for the day was incomplete due to thousands of pending reports. We will specifically announce when this note is no longer there.

On November 27, 2020, Ohio's update included data from the previous day. Continuing from the previous week, Ohio reported that their data is incomplete due to unprecedented testing volume.

On November 26, 2020, the listed states either released partial updates or did not update their data at all.

On November 18, 2020 through November 25, 2020 Ohio reported that their data for the day was incomplete due to thousands of pending reports.

On November 25, 2020, Ohio's public note remained on their dashboard, reporting that their data is incomplete due to a "surge in testing."

On November 23, 2020 Ohio announced that their data for November 23, 2020 would include two days worth of positive test results which were delated due to technical issues affecting lab reporting. Additionally, on November 23, 2020, Ohio did not update their Total PCR tests (specimens) by the time of our daily update. Because Negative PCR tests (specimens) is calculated by subtracting Positive PCR tests (people, confirmed + probable) from Total PCR tests (specimens), we did not update them on November 23, 2020.

On November 22, 2020, Ohio reported that their data for the day was incomplete due to thousands of pending reports.

On November 20, 2020, Ohio's data updated normally, but, like the previous day, the dashboard notes that the data is incomplete due to thousands of pending reports.

On November 19, 2020, Ohio's data updated normally, but, like the previous day, the dashboard notes that the data is incomplete due to thousands of pending reports.

On November 18, 2020, Ohio reported 5,246,480 Total PCR tests (specimens) - the same number that was reported on November 15, 2020, and a drop of roughly 102k tests from November 17, 2020. Because Ohio announced that their data for November 18, 2020 was incomplete, and we suspect this decrease was a result of that, we did not update Total PCR tests (specimens) or Negative PCR tests (people) on November 18, 2020.

On November 15, 2020, we fixed a typo for Currently hospitalized from that day's publication shift.

On November 6, 2020, we carried over the value for Total PCR tests (specimens) because Ohio did not provide an update for this metric. As a result, we also carried over the value for Negative PCR tests (people) because it uses the Total PCR tests (specimens) number in its calculation.

Ohio has been reporting probable cases on its dashboard since 4/10. CTP did not create a column to capture explicit probable cases until 7/28, . This fills out probable cases from 4/10 through 7/27 using the difference between confirmed and total

CTP's current values for Total PCR Tests (People) only goes back until 5/13. Used the secondary screenshots to backfill to 4/20 (inclusive). OH reports the value as "Total Tested." Since OH reports in unclear units, we are defaulting to reporting "Total Tested" in Total Tests (PCR) until outreach gets back with more information.

Deleted one value on 5/17 in Total Tests (PCR) which was a duplicate of the value Total PCR Tests (People)

States Grades not published for 8/12-8/13