August 4 COVID-19 Update: Cook County remains at community ‘high’ risk tier, Evanston at ‘medium’ risk tier


The total number of new COVID-19 cases in Evanston was 163 in the week ending August 3, compared with 185 in the week ending July 28, a decrease of 12%. The seven-day average of new cases in the state also decreased by 12%; hospitalizations decreased by 4%.

Cook County, including Chicago, remained at the community’s “high” risk level. City officials say Evanston is at the “medium” risk level.

The number of new cases reported is significantly lower than the actual number of new contracted cases because many new cases are not being reported. [1] Some researchers estimate the actual number of new cases to be between six and ten times the reported number.

New Case Trends in Illinois and Evanston

Illinois: As of August 4, the number of new cases in the state was 4,149.

The seven-day average of new cases in Illinois on Aug. 4 was 4,345, down from 4,962 on July 28, down 12.4%. The graph below shows the trend.

Evanston: Evanston reported that there were 28 new COVID-19 cases from Evanston residents as of August 3. (Evanston is reporting COVID-19 data a day late.)

There were a total of 163 new COVID-19 cases from Evanston residents in the week ending August 3, compared with 185 new cases in the week ending July 28, a decrease of 12%.

The graph below shows the trend.

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