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

Officials announced the first COVID-19 case in ÁñÁ«ÊÓƵ on March 7.
CASES
NOTE: On Thursday, Nov. 18, 2021, the Missouri Department of Health and Senior Services (DHSS) changed how it reports COVID-19 cases and deaths. The department began counting reinfections as new cases, and added epidemiologically linked cases to its counts.
NOTE: On Oct. 11, Missouri announced that a database error had resulted in an “incorrect inflation†of cases in its Oct. 10 report
NOTE: On Thursday, Nov. 18, 2021, the Missouri Department of Health and Senior Services (DHSS) changed how it reports COVID-19 cases and deaths. The department began counting reinfections as new cases, and added epidemiologically linked cases to its counts.
On April 17, 2021, DHSS adjusted 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. That date's data has been removed from this display.
Beginning March 8, 2021, 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.
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. That date's data has been removed from this display.
NOTE: On Thursday, Nov. 18, 2021, the Missouri Department of Health and Senior Services (DHSS) changed how it reports COVID-19 cases and deaths. The department began counting reinfections as new cases, and added epidemiologically linked cases to its counts.
On April 17, 2021, DHSS adjusted 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.
Beginning March 8, 2021, 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.
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.
HOSPITALIZATIONS
Note from Missouri Department of Health and Senior Services: 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 were unable to access hospitalization data during the transition. .
Note from St. Louis Metropolitan Pandemic Task Force: The data includes patients at BJC HealthCare, SSM Health and St. Luke's Hospital. As of Jan. 17, 2022, the data includes patients at the VA St. Louis Healthcare System.
DEATHS
Note from Missouri Department of Health and Senior Services: The discrepancy in the number of deaths on July 19, 2020, was
NOTE: On Thursday, Nov. 18, 2021, the Missouri Department of Health and Senior Services (DHSS) began counting probable death along with confirmed deaths.
