That's according to a North Cook News analysis of data collected and published in the COVID-19 Data Repository by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University.
Cook County's 2019 population was 5,180,493.
Herd Immunity
Dr. Deborah Birx, response coordinator of the White House Coronavirus Task Force, said in May that she believes the methodology for attributing COVID-19 "cause of death" incentivizes hospitals to over count.
COVID-19 counting errors notwithstanding, there is reason to believe that some communities are approaching the point when "herd immunity" is achieved. Herd immunity happens when enough of the population has become immune to the virus from previous infection that it effectively protects those who are not immune.
According to Nobel laureate and Stanford University biophysicist Dr. Michael Levitt, "herd immunity" kicks in and viruses burn out after infecting 15 to 20 percent of the population.
The estimated total COVID-19 infected in Cook County makes up an estimated 41 percent of its total 2019 population of 5,180,493, exceeding Levitt's threshold.
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