March 7, 2020 to March 4, 2021

Variables affected:

Tags: CTP API / Logic Changes

SD switching totalTestResults

March 12, 2020 to March 3, 2021

Variables affected:

Tags: CTP Backfill

Replace "Total Tests (PCR)" with a PCR-only testing time series, and update "Positive Tests (PCR)" for positive PCR tests, from the same data source

February 11, 2021

Variables affected:

Tags: State Data Note State Anomalies

On February 11, 2021, South Dakota posted a note on the state [dashboard](https://doh.sd.gov/COVID/Dashboard.aspx) as follows: "A large number of COVID-19 test results are reported in today’s update due to IT system updates completed on one of several reporting methods."

January 1, 2021

Variables affected:

Tags: State / Metric No Update State Data Note

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.

December 27, 2020

Variables affected:

Tags: State Anomalies

On December 27, 2020, the District of Columbia, Oklahoma, South Carolina, and South Dakota noted that their data for December 27, 2020 would include two days of data due to holiday related reporting cadence changes.

December 25, 2020 to December 27, 2020

Variables affected:

Tags: State / Metric No Update

On December 24, 2020, South Dakota [announced](https://twitter.com/SDDOH/status/1342173217918746626) via the official South Dakota Department of Health twitter that there would be no update to their data on December 25, 2020 due to the holiday. Additionally, they noted that the data reported on December 26, 2020, would be the data which normally would have been reported on December 25, 2020, and the data reported on December 27, 2020 would include two days of data.

December 25, 2020

Variables affected:

Tags: State / Metric No Update

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.

November 26, 2020

Variables affected:

Tags: State / Metric No Update

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

October 7, 2020

Variables affected:

Tags: CTP Backfill New Metric

SD started reported Probable cases today. Added Confirmed and Probable values.

September 18, 2020

Variables affected:

Tags: CTP API / Logic Changes CTP Backfill

Multiple states were switched to use direct columns

June 4, 2020 to June 4, 2020

Variables affected:

Tags: CTP Backfill CTP Backfill Mistake Correction

On September 18, 2020, we fixed a data entry error we made for the totalTestsPeopleViral on June 4, 2020. Previously, we had entered it incorrectly by typing a 3 where there should have been a 2.

August 25, 2020 to August 26, 2020

Variables affected:

Tags: CTP Backfill

On 8/27 SD's update included cases that were not reported on August 25th and 26th due to a reporting aberration. They included the corrected data for cumulative cases and cumulative people tested, which we backfilled with a press release.

May 17, 2020

Variables affected:

Tags: CTP Backfill Mistake Correction

I deleted the value for Total Tests (PCR) on 5/17. Reasoning for deletion: this value appeared to be an entry error, as it doesn't align with our current process for reporting Total Tests (PCR), which only began on 8/3.

August 12, 2020 to August 13, 2020

Variables affected:

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

August 3, 2020

Variables affected:

On 8/3, SD updated their dashboard and added Total tests (specimens) and Total tests (people) (previously we had to sum pos+neg to get total people, and did not have Total Tests (specimens)).

We updated our popup notes and filled in columns accordingly.

July 28, 2020

Variables affected:

Cleared Positive Cases (PCR) cell and removed pop-up note because SD reports 'Total Positive Cases,' which is ambiguous as to the type of testing and confirmed/probable.

July 27, 2020

Variables affected:

SD reported 148 fewer negative cases (from 98531 to 98383)

July 14, 2020

Variables affected:

Tags: CTP Backfill Mistake Correction

South Dakota does not clarify whether their case counts are lumped or confirmed only. As such, we’ve removed all SD cases in the confirmed positives column.

April 21, 2020

Variables affected:

Tags: New Metric

On April 21, 2020, South Dakota started reporting the number of patients currently hospitalized.

March 31, 2020

Variables affected:

Tags: New Metric

On March 31, 2020, South Dakota started reporting hospitalizedCumulative.