McHenry County, IL School Metrics Dashboard

The McHenry County Department of Health (MCDH) is committed to reducing the risk of COVID-19 in schools.

This dashboard is a resource to help McHenry County, Illinois school districts make data-informed decisions during the COVID-19 pandemic.

Click the buttons below to navigate to the MCDH Interim School Guidance, the "MCDH Schools, Students, and Youth Camps Guidelines" web page, McHenry County COVID-19 Dashboard, and the MCDH COVID-19 Vaccine web page.

Guidelines for Determining Community Level

Community Level (i.e. low, medium, or high) for McHenry County is based on incidence rate, new COVID-19 admissions per 100,000 population, and percent of staffed inpatient beds occupied by COVID-19 patients.  At this time, MCDH is currently updating the McHenry County School Metrics Dashboard to reflect the new CDC framework released on 2/25/22 to monitor the level of COVID-19 in communities. Please refer to CDC regarding community levels while the other metrics for determining community levels in McHenry County are under review. Thank you for your patience. 

https://www.cdc.gov/coronavirus/2019-ncov/science/community-levels.html

Metrics

Incidence Rate is updated daily, Monday-Friday between 4 pm and 6 pm. All data is presented at the county level and is provisional and subject to change.

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Community Level:

Low

MCDH is currently updating the McHenry County School Metrics Dashboard reflect the new CDC framework released on 2/25/22 to monitor the level of COVID-19 in communities that includes hospitalizations, hospital capacity, and cases. This new approach focuses on preventing hospitals and healthcare systems from being overwhelmed and directing prevention efforts towards protecting people at high risk for severe illness.  Please refer to CDC regarding community level while the other metrics for determining community level in McHenry County are under review. Thank you for your patience.

https://www.cdc.gov/coronavirus/2019-ncov/science/community-levels.html

Incidence Rate

The past 7-day Incidence Rate is displayed, rounded to two decimal places. Incidence rate will be reported daily. This measure will be reported with a five-day lag. Click "Filter by Date Range" to view historical data.


Last updated 10/5/2022

Additional Considerations

In addition to the above metrics, schools are advised to monitor additional metrics such as the percent increase in the number of cases per week, the percent increase in the number of youth cases per week, county vaccination rate, school vaccination rate, and school case rate. Schools should also consider other relevant epidemiological factors (e.g. rapid increase in cases, outbreaks, significant shifts in demographics of cases, etc.) and local factors (capacity/infrastructure of school district to implement prevention strategies).

Percent Increase in Cases Per Week

This metric is updated weekly on Friday between 4 pm and 6 pm. Data is provisional and subject to change. Only the percent increase for the latest week of data (compared to the previous week) is displayed; however, this metric is evaluated based on the percent increase for the past two consecutive weeks (see Definitions, Calculations, and Methodology section below).

Last Updated: 09/30/2022

Percent Increase in Number of Cases Per Week


-20%


Evaluation: Stable/Decreasing

Percent Increase in the Number of Youth Cases Per Week


6%


Evaluation: Stable/Decreasing

Number of Cases Per Week (All Cases and Youth Cases)

Filter by Date Range cannot be done for this graph. To view the data for all cases or youth individually, deselect the other series by clicking on it in the legend.


Last updated 09/30/2022

Definitions, Calculations, and Methodology

*As of 3/1/2022, the methodology below is no longer up to date. McHenry County Department of Health is currently updating the School Metrics Dashboard to reflect the new guidance outlined in CDC framework on Community Level. This section will be updated once the new metrics have been reviewed.*

Incidence Rate: To best capture the community spread of COVID-19, incidence rate will be evaluated using the following methods and considerations:

         Calculation

         This metric is calculated by dividing the total number of new cases in the past 7 days by the total county population, then                                   multiplying it by 100,000. This measure uses the 2015-2019 American Community Survey estimate of population (307,714). New                    cases are reported by lab report date. Incidence rate will be reported daily. This measure will be reported with a five-day lag.

         Evaluation

         Incidence rate is considered to have met the criteria for the lower level of community transmission (high → substantial → moderate           → low) when it has met the threshold for at least 7 consecutive days. The metric is considered to have met the criteria for the higher             level of community transmission (low → moderate → substantial → high) when it has met the threshold for at least 7 of the last 10              days.


Positivity: To best capture the community spread of COVID-19, test positivity will be evaluated using the following methods and considerations:

         Calculation

         This metric is calculated by dividing the total number of positive tests for the last 7 days by the total tests performed in the last 7                   days, multiplied by 100 and rounded to the nearest decimal place. Tests are reported by lab report date. Test positivity will be                         reported daily. To remain consistent with IDPH, this measure will be reported with a three-day lag.

         Evaluation

         Test positivity is considered to have met the criteria for the lower level of community transmission (high → substantial → moderate           → low) when it has met the threshold for at least 7 consecutive days. The metric is considered to have met the criteria for the higher             level of community transmission (low → moderate → substantial → high) when it has met the threshold for at least 7 of the last 10              days.


Percent Increase in the Number of Cases Per Week

         Calculation

         This metric is calculated by measuring the change from week to week (for 2 consecutive weeks) of the total count of new cases                       reported during the 7 days of the week (Sun – Sat). New cases are counted by lab report date. 

         Evaluation

         This metric is considered stable/decreasing when the percent increase is ≤ 10% for two consecutive weeks (for each week). It is                      considered increasing when the percent increase is > 10% for two consecutive weeks (for each week). This metric is considered                      fluctuating when the percent increase for one week is ≤ 10% and for the other week is > 10% over a consecutive two-week period.


Percent Increase in the Number of Youth Cases Per Week

         Calculation

         Percent increase in the number of youth cases per week is calculated by measuring the change from week to week (for                                        2 consecutive weeks) of the total count of new cases reported amount youths (ages 3-18) during the seven days of the week (Sun –               Sat). New cases are counted by lab report date. 

         Evaluation

         This metric is considered stable/decreasing when the percent increase is ≤ 10% for two consecutive weeks (for each week). It is                       considered increasing when the percent increase is > 10% for two consecutive weeks (for each week). This metric is considered                      fluctuating when the percent increase for one week is ≤ 10% and for the other week is > 10% over a consecutive two-week period.