There have been 28,439 residents in their fifties in the county who had been tested, meaning that 18 percent of those tested have the coronavirus. Through May 23, there have been 29,015 confirmed COVID-19 cases and 1,352 deaths from the coronavirus in Cook County.
Illinois gathers all of its COVID-19 data from across the state electronically. The reported cases and deaths will fluctuate as additional info is gathered. Chicago was home to one of the first known cases of COVID-19 in the US, as well as it's transmission.
Test results for the past 10 days in Cook County
Date
Total Tested
Total Positive
Positive %
May 23
162,795
29,015
17.8
May 22
156,987
28,484
18.1
May 21
157,774
27,796
17.6
May 20
143,683
27,374
19.1
May 19
144,845
26,772
18.5
May 18
140,705
26,256
18.7
May 17
136,267
25,597
18.8
May 16
131,841
25,206
19.1
May 15
126,873
24,722
19.5
May 14
121,423
24,116
19.9
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