Skip to main content

Measles cases are on the rise globally and here in Illinois the number is increasing as well. Vaccines are 97% effective in preventing this highly contagious disease.  To learn more about this infection and get information on vaccination, go to  Learn how to identify measles and the safe and effective vaccine that can prevent this potentially life-threatening infection for adults and children. 

Public Health Officials Announce 77,246 New Cases of Coronavirus Disease Over the Past Week

News – Thursday, December 23, 2021

Over 1 million tests performed in Illinois this past week

SPRINGFIELD – The Illinois Department of Public Health (IDPH) today reported 77,246 new confirmed and probable cases of coronavirus disease (COVID-19) in Illinois, including an increase of 318 deaths since December 17, 2021.

Currently, IDPH is reporting a total of 2,021,302 cases, including 27,435 deaths, in 102 counties in Illinois.  The age of cases ranges from younger than one to older than 100 years.  Since Friday, December 17, 2021, laboratories have reported 1,176,096 specimens for a total of 43,209,451.  As of last night, 4,271 individuals in Illinois were reported to be in the hospital with COVID-19.  Of those, 867 patients were in the ICU and 485 patients with COVID-19 were on ventilators. 

The preliminary seven-day statewide positivity for cases as a percent of total test from December 16-22, 2021 is 6.3%.  The preliminary seven-day statewide test positivity from December 16-22, 2021 is 8.6%. 

A total of 18,853,953 vaccines have been administered in Illinois as of last midnight.  The seven-day rolling average of vaccines administered daily is 65,827 doses.  Since Friday, December 17, 2021, 388,453 doses were reported administered in Illinois.  Of Illinois’ total population, more than 71.8% has received at least one COVID-19 vaccine dose and more than 64% of Illinois’ total population is fully vaccinated according to data from the Centers for Disease Control and Prevention (CDC).    

Illinois COVID data will not update on Friday, December 24, 2021, Saturday, December 25, 2021, and Sunday, December 26, 2021. Updates will resume on Monday, December 27, 2021.

All data are provisional and will change.  Additional information and COVID-19 data can be found at  

Vaccination is the key to ending this pandemic.  To find a COVID-19 vaccination location near you, go to