Starting today (6/10/2021), COVID-19 case, test, and vaccination datasets will only be updated Monday through Friday, excluding City holidays. This is a change from the past when they were updated daily, including weekends and holidays.Read more
At some point over time – and we actually do not know when, why, or how – the data source value for the
AGE column in the Sex Offenders dataset was removed such that the column in the dataset is blank for all records. However, the
BIRTH DATE column, which conveys fundamentally the same information, is still populated.
As of May 7, 2021 we will no longer update the COVID-19 Daily Testing – By Person dataset. All data currently in the dataset will remain, but new data will not be added.Read more
As of today (2/18/2021) an update is being made to add race-ethnicity data to the Chicago resident vaccination dataset: COVID-19 Daily Vaccinations – Chicago Residents. This change has added 18 columns to the dataset – six categories each for:Read more
Starting with today’s (2/8/2021) update, COVID-19 case and test datasets will include antigen tests in addition to the molecular (PCR) tests that have been reported until now. Both antigen and PCR tests are used to determine if a person has an active infection, meaning they have COVID-19 infection at the time they are tested. This change has been made because the use of antigen tests has increased over time. This change will affect historical daily or weekly counts from the addition of antigen positive cases and antigen tests. Datasets that will see past values increase because of this change are:Read more
Starting with today’s update, the content of the
Row ID column in the COVID-19 Cases, Tests, and Deaths by ZIP Code dataset will change. It incorporates the U.S. Centers for Disease Control and Prevention MMWR Week. Since these weeks repeat from year to year, the
Row ID values would eventually have duplicates. The new values also incorporate the year so will be permanently unique.