May 13, 2020 to June 11, 2020
Variables affected:
-
totalTestsPeopleViral
Tags: CTP Backfill
We recorded Illinois's Total Test metric in both the Total tests (specimens) and Total tests (people) fields off and on between May 13, 2020 and June 11, 2020. Removing the values from Total tests (people).
March 4, 2020 to March 3, 2021
Variables affected:
-
negative
Tags: CTP Backfill
On March 4, 2021, we cleared the history of Negative (people or cases) in Illinois. This number mixed units and we no longer need it to calculate totalTestResults.
March 10, 2020 to March 4, 2021
Variables affected:
-
totalTestResults
Tags: CTP Backfill
As of March 04, 2021, IL's Total Tests Results is drawn from Total Test Viral instead of Pos+Neg.
March 10, 2020 to May 24, 2020
Variables affected:
-
totalTestsViral
Tags: CTP Backfill
On March 4, 2021, we backfilled the history of Illinois' Total Tests (PCR) to add history stretching back to March 10, 2020.
November 9, 2020
Variables affected:
-
negative
Tags: CTP Backfill CTP Backfill Mistake Correction
On November 9, 2020, Data Entry subtracted an un-updated confirmed number from the Total PCR tests (specimens) number to calculate negatives. Since IL removed this metric on November 6, 2020, we should use the Cases (confirmed and probable) number in the calculation instead. On November 10,2020, we backfilled this mistake.
November 6, 2020
Variables affected:
-
positiveCasesViral -
probableCases
On November 6, 2020, Illinois stopped reporting Confirmed and Probable case numbers separately. Due to this we cannot continue reporting these metrics, but the time series for them is available in the historical data and in our data downloads.
October 31, 2020
Variables affected:
-
totalTestsViral -
positiveTestsViral -
positiveCasesViral -
positive -
negative -
death -
deathConfirmed
On October 31, 2020, Illinois did not update their dashboard during our daily publication shift, but they did release their numbers in a (press release)[http://www.dph.illinois.gov/news/public-health-officials-announce-7899-new-confirmed-cases-coronavirus-disease]. We used this alternative source to update Total PCR tests (specimens), Positive PCR tests (people), Cases (confirmed plus probable), Negative PCR tests (people), Deaths (confirmed and probable), and Deaths (confirmed).
October 31, 2020
Variables affected:
-
totalTestsViral -
positiveCasesViral -
positive -
negative -
death -
deathConfirmed -
probableCases
On October 31, 2020, IL did not update update anything but hospitalization metrics on their dashboard. We updated tests, cases, and deaths with (this press release) [http://www.dph.illinois.gov/news/public-health-officials-announce-7899-new-confirmed-cases-coronavirus-disease].
June 8, 2020 to July 27, 2020
Variables affected:
-
probableCases
Tags: CTP Backfill New Metric
CTP didn't have a column for probables until 7/28 and we started a confirmed cases column on 4/29. IL didn't start separating out confirmed and probables until 6/8. Calculated probables as positive - positive(PCR) from 6/9 to 7/28.
August 12, 2020 to August 13, 2020
Variables affected:
-
dataQualityGrade
States Grades not published for 8/12-8/13
May 25, 2020 to June 6, 2020
Variables affected:
-
totalTestsViral -
positiveCasesViral
IL had a gap in Positive Cases (PCR) between 6/04 and 5/25, although confirmed cases were being reported during that time. There was also a two day gap between 6/5-6/6 in Total Tests (PCR). Backfilled with data from state dashboard charts.
April 14, 2020
Variables affected:
-
inIcuCurrently -
hospitalizedCurrently -
onVentilatorCurrently
Tags: State Annotation / Source Change
On April 14, 2020, Illinois published a hospitalization dashboard, and we started sourcing current hospitalizations metrics from there.