CHICAGO, IL — New coronavirus cases jumped substantially in the past week — jumping by 236 percent — with more deaths being reported in nursing homes and the two deaths of inmates at the Cook County Jail. As of Friday morning, 16,422 have tested positive for COVID-19, the respiratory disease caused by the virus, and many more are expected to have the virus but have not been tested due to a lack of tests or may not have even shown any symptoms, state officials said Thursday.

The virus has killed 528 across the state as of Thursday afternoon, according to the Illinois Department of Public Health. One week ago, 157 deaths were reported throughout the state. The state health agency updates its numbers every afternoon. As of Thursday, the city of Chicago is among the most densely-populated areas that's been the hardest hit with 6,648 cases and 198 deaths to date. While suburban Cook County has also seen a high number of cases, with 4,767 testing positive for the virus as of Thursday afternoon and 153 deaths.

Illinois Coronavirus Update April 10: 16,422 Cases; 528 Deaths The virus has sadly spread fast in some congregate settings, like nursing homes, where an older population is living close quarters. In Lake County, more than half the deaths attributable to coronavirus have occurred in long-term care facilities, county spokesperson reported Thursday. Thirteen residents of such facilities have died out of the first 23 deaths reported in the county as of Thursday. The Lake County Health Department reported its first death from the coronavirus on March 27.

Here is a county-by-county look at the number of cases in the Chicago area as of Thursday afternoon: This past week, the Illinois Department of Public Health released an interactive map that breaks down the number of coronavirus cases by zip code and county information. The map is consistently being updated as new data comes in. Only zip codes that have more than five cases are represented on the map, although it is noted that it should be assumed coronavirus exposure can happen in any zip code in the state. Search For Coronavirus Cases In Your Neighborhood By Zip Code Cases have continued to climb since the first case was reported in the state on Jan. 24 and Thursday marked the state's highest jump in deaths over a 24-hour period to date. Yes

March 11 marked the first cases reported outside of Chicago and Cook County, according to state health officials. Those patients lived in Kane and McHenry counties.