As of March 4, there have been 18,696 Cook County residents of 80 years and older who have tested positive for COVID-19, according to numbers being reported to the Illinois Department of Public Health.
There have been 575,862 residents of 80 years and older in the county who had been tested, meaning that 3.2 percent of those tested have the coronavirus. Through March 4, there have been 554,322 confirmed COVID-19 cases and 6,842 deaths from the coronavirus in Cook County.
Illinois was home to some of the first reported COVID-19 cases in the US. It has suffered numerous waves of the pandemic, which peaked in the fall of 2020. As the Midwestern hub of the US, Illinois businesses suffered greatly, including layoffs at two major airlines based in the state.
| Date | Total Tested | Total Positive | Positive % |
|---|---|---|---|
| March 4 | 10,034,026 | 554,322 | 5.5 |
| March 3 | 10,003,747 | 554,043 | 5.5 |
| March 2 | 9,976,077 | 553,821 | 5.6 |
| March 1 | 9,955,276 | 553,501 | 5.6 |
| February 28 | 9,947,046 | 553,142 | 5.6 |
| February 25 | 9,878,854 | 552,262 | 5.6 |
| February 24 | 9,842,689 | 552,069 | 5.6 |
| February 23 | 9,817,465 | 551,957 | 5.6 |
