NOTE: On Saturday, April 17, 2021, the Missouri Department of Health and Senior Services (DHSS) noted on its dashboard that it discovered a database error that was causing individuals with both a positive PCR and antigen result to be counted as both a probable and confirmed case. This correction removed 11,454 cases that were counted twice in previous probable antigen cases, according the notation.
NOTE: Beginning Monday, March 8, 2021, the Missouri Department of Health and Senior Services (DHSS) began posting county-level data showing "probable" COVID-19 cases detected by antigen testing. Using the historical data from the DHSS dashboard, we reconfigured this graph to include that number in the total.
NOTE: Missouri updated its data dashboard on Sept. 28. 2020, to delete duplicate cases. This resulted in a decrease of total cases which caused the daily count to reflect a negative number.
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The spike in St. Charles County has leaders considering cloing some businesses again.
These maps and charts show the spread of COVID-19 in Missouri and Illinois.