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COVID-19 in Missouri and Illinois: By the numbers

COVID-19 in Missouri and Illinois: By the numbers

  • Updated

These maps and charts show the spread of the coronavirus and COVID-19 in Missouri and Illinois. 

Officials announced the first COVID-19 case in Missouri on March 7.


NOTE: On Oct. 11, Missouri announced that a database error had resulted in an “incorrect inflation” of cases in its October 10 report

NOTE: Missouri updated its data dashboard on Sept. 28 to delete duplicate cases. This resulted in a decrease of total cases which caused the daily count to reflect a negative number.


Note from Missouri Department of Health and Senior Services: Please note, due to an abrupt change in data measures and the reporting platform issued by the White House on Monday, July 13, and effective Wednesday, July 15, Missouri Hospital Association (MHA) and the State of Missouri will be unable to access critical hospitalization data during the transition. .

Note from St. Louis Metropolitan Pandemic Task Force regarding the numbers for July 20: There was a delay in reporting some test results leading to the increase in reported hospital admissions.


Note from Missouri Department of Health and Senior Services: The discrepancy in the number of deaths on July 19, 2020, was due a duplicate record being discovered by the Missouri DHSS. 




COVID-19 Illinois: Testing

COVID-19 Missouri: Testing

Until May 23, health officials were adding together two different types of tests: viral tests (PCR) that show who is currently sick with COVID-19, and antibody tests (serology) that look for signs of past exposure.


"Calculated" = Post-Dispatch methodology. NUMERATOR: Number of new "Lab Confirmed Cases" per day via Missouri COVID-19 Dashboard; DENOMINATOR: Number of new 'PCR Tested Individuals' per day via Missouri COVID-19 Dashboard. We record new numbers for each day and calculate the average for the past seven days.

"MO DHSS reported" =
The % as reported on the Missouri COVID-19 Dashboard. This number was first published to the dashboard on July 25, 2020. The Missouri Department of Health and Senior Services uses numbers from "the most recent 7-day period that we feel our data is mostly complete," according to Lisa Cox, Communications Director for the department. The data is "listed on the date that the person was actually tested, initially. Then when interviews have happened and contact tracing is done, many times we have more information provided to us for that case. If symptom onset date is a new piece of information gathered, the testing date reverts to symptom onset date. This data is always changing for this reason," according to Cox. For more information on why numbers may differ, CLICK HERE.

NOTE: No new testing data was available via Missouri COVID-19 Dashboard on July 10, 2020. We have interpolated the available data to estimate that number.




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