COVID-19: Hospitals

Important updates regarding our data

Please note that the Wisconsin Electronic Disease Surveillance (WEDSS) system underwent routine maintenance and enhancements over the weekend of October 16-18, 2020. During that time, data reporting and visualization updates were temporarily paused. Due to this temporary pause in reporting, no new cases were reported out on October 17, 2020.  As a result of the upgrade, the number of confirmed cases newly reported fluctuated over the past several days. As of October 22, 2020 the data will begin to reflect what we expect to see given the high COVID-19 activity levels across Wisconsin. For a more accurate representation of COVID-19 in Wisconsin over the course of this upgrade, we recommend looking at the 7-day rolling averages.

Jump to specific COVID-19 chart on this page:

For additional information on hospital capabilities available at the regional level, please see the hospital capacity metrics on our local data charts.

 

 

 

 

Percent of COVID-19 cases who are health care workers

Understanding our data: What does this chart mean?

This figure shows us the percent of confirmed COVID-19 cases in Wisconsin who are health care workers. The designation "health care worker" covers a broad range of occupations in the health care field. The numbers shown are a percentage of all confirmed cases in Wisconsin.

About our data: How do we measure this?

Data source: Wisconsin Electronic Disease Surveillance System (WEDSS).

Read our Frequently Asked Questions for more information on how cases of COVID-19 are reported to WEDSS.

Every morning by 9 a.m., we extract the data from WEDSS that will be reported on the DHS website at 2 p.m. These numbers are the official DHS numbers. Counties may report their own case and death counts on their own websites. Because WEDSS is a live system that constantly accepts data, case and death counts on county websites will differ from the DHS counts if the county extracted data from WEDSS at a different time of day. Please consult the county websites to determine what time of day they pull data from WEDSS. Combining the DHS and local totals will result in inaccurate totals.

Confirmed cases of COVID-19: Unless otherwise specified, the data described here are confirmed cases of COVID-19 reported to WEDSS. Cases are classified using the national case definition established by the CDC. Confirmed cases are those that have positive results from diagnostic, confirmatory polymerase chain reaction (PCR) tests or nucleic acid amplification tests (NAT) that detect genetic material of SARS-CoV-2, the virus that causes COVID-19. Illnesses with only positive antigen or positive antibody test results do not meet the definition of confirmed and are not included in the number of confirmed cases.

COVID-19 Deaths: Unless otherwise specified, COVID-19 deaths reported on the DHS website are deaths among confirmed cases of COVID-19 that meet the vital records criteria set forth by the CDC and Council of State and Territorial Epidemiologists (CSTE) case definition. Those are deaths that have a death certificate that lists COVID-19 disease or SARS-CoV-2 as an underlying cause of death or a significant condition contributing to death. Deaths associated with COVID-19 must be reported by health care providers or medical examiners/coroners, and recorded in WEDSS by local health departments in order to be counted as a COVID-19 death. Deaths among people with COVID-19 that were the result of non-COVID reasons (e.g., accident, overdose, etc.) are not included as a COVID-19 death. For more information see the FAQ page.

Probable cases of COVID-19 and deaths among probable cases. Some visualizations include the option of including information on probable cases of COVID-19 and deaths among probable cases of COVID-19. Cases are classified using the national case definition established by the CDC and the CSTE [https://wwwn.cdc.gov/nndss/conditions/coronavirus-disease-2019-covid-19/.... A person is counted as a probable* case of COVID-19 if they are not positive by a confirmatory laboratory test method (for example, a PCR, or NAT test), but have met one of the following:

  1. Test positive using an antigen test method.
  2. Have symptoms of COVID-19 AND known exposure to COVID-19 (for example, being a close contact of someone who was diagnosed with COVID-19).
  3. COVID-19 or SARS-CoV-2 is listed on the death certificate.

*This definition was updated as of August 19, 2020. Previously, probable cases also included those that had a positive antibody test which detects COVID-19 antibodies in the blood. For more details on this transition, see the CDC’s statement.

Deaths among probable cases are those that meet one of the following criteria:

  • A probable case of COVID-19 is reported to have died from causes related to COVID-19.
  • A death certificate that lists COVID-19 disease or SARS-CoV-2 as an underlying cause of death or a significant condition contributing to death is reported to DHS but WEDSS has no record of confirmatory laboratory evidence for SARS-CoV-2.

People with negative test results: The number of people with negative test results includes only Wisconsin residents who had negative confirmatory test results (PCR or NAT tests that detect pieces of SARS-CoV-2) reported electronically to WEDSS or entered manually into the WEDSS electronic laboratory module. Because manual entry of negative test results into electronic laboratory module takes more time, this number underestimates the total number of Wisconsin residents with negative test results.

Data shown are subject to change. For more information see the FAQ page. As individual cases are investigated by public health, there may be corrections to the status and details of cases that result in changes to this information. Some examples of corrections or updates that may result in the case or death counts going up or down, include:

  • Update or correction of case’s address, resulting in a change to their location of residence to another county or state
  • Correction to laboratory result
  • Correction to a case’s status from confirmed to unconfirmed (for example, if they were marked as confirmed because a blood test detecting antibodies was positive instead of a test detecting the virus causing COVID-19)
  • De-duplication or merging and consolidation of case records
  • Update of case’s demographic information from missing or unknown to complete information

For information on testing, see: COVID-19, testing criteria section.

We plan to update our data daily by 2 p.m.

Back to a list of charts on this page.


Understanding our data: What does this chart mean?

This map allows you to choose a Health care Emergency Readiness Coalition (HERC) region to view the number of cases among health care workers in that region. Hovering over the region will list the counties located within that region as well as the number and percent of cases among health care workers for that region. We can use this to identify regions where health care workers are being increasingly affected by COVID-19 and inform our response accordingly.

About our data: How do we measure this?

Data source: Wisconsin Electronic Disease Surveillance System (WEDSS).

Read our Frequently Asked Questions for more information on how cases of COVID-19 are reported to WEDSS.

Every morning by 9 a.m., we extract the data from WEDSS that will be reported on the DHS website at 2 p.m. These numbers are the official DHS numbers. Counties may report their own case and death counts on their own websites. Because WEDSS is a live system that constantly accepts data, case and death counts on county websites will differ from the DHS counts if the county extracted data from WEDSS at a different time of day. Please consult the county websites to determine what time of day they pull data from WEDSS. Combining the DHS and local totals will result in inaccurate totals.

Confirmed cases of COVID-19: Unless otherwise specified, the data described here are confirmed cases of COVID-19 reported to WEDSS. Cases are classified using the national case definition established by the CDC. Confirmed cases are those that have positive results from diagnostic, confirmatory polymerase chain reaction (PCR) tests or nucleic acid amplification tests (NAT) that detect genetic material of SARS-CoV-2, the virus that causes COVID-19. Illnesses with only positive antigen or positive antibody test results do not meet the definition of confirmed and are not included in the number of confirmed cases.

COVID-19 Deaths: Unless otherwise specified, COVID-19 deaths reported on the DHS website are deaths among confirmed cases of COVID-19 that meet the vital records criteria set forth by the CDC and Council of State and Territorial Epidemiologists (CSTE) case definition. Those are deaths that have a death certificate that lists COVID-19 disease or SARS-CoV-2 as an underlying cause of death or a significant condition contributing to death. Deaths associated with COVID-19 must be reported by health care providers or medical examiners/coroners, and recorded in WEDSS by local health departments in order to be counted as a COVID-19 death. Deaths among people with COVID-19 that were the result of non-COVID reasons (e.g., accident, overdose, etc.) are not included as a COVID-19 death. For more information see the FAQ page.

Probable cases of COVID-19 and deaths among probable cases. Some visualizations include the option of including information on probable cases of COVID-19 and deaths among probable cases of COVID-19. Cases are classified using the national case definition established by the CDC and the CSTE [https://wwwn.cdc.gov/nndss/conditions/coronavirus-disease-2019-covid-19/.... A person is counted as a probable* case of COVID-19 if they are not positive by a confirmatory laboratory test method (for example, a PCR, or NAT test), but have met one of the following:

  1. Test positive using an antigen test method.
  2. Have symptoms of COVID-19 AND known exposure to COVID-19 (for example, being a close contact of someone who was diagnosed with COVID-19).
  3. COVID-19 or SARS-CoV-2 is listed on the death certificate.

*This definition was updated as of August 19, 2020. Previously, probable cases also included those that had a positive antibody test which detects COVID-19 antibodies in the blood. For more details on this transition, see the CDC’s statement.

Deaths among probable cases are those that meet one of the following criteria:

  • A probable case of COVID-19 is reported to have died from causes related to COVID-19.
  • A death certificate that lists COVID-19 disease or SARS-CoV-2 as an underlying cause of death or a significant condition contributing to death is reported to DHS but WEDSS has no record of confirmatory laboratory evidence for SARS-CoV-2.

People with negative test results: The number of people with negative test results includes only Wisconsin residents who had negative confirmatory test results (PCR or NAT tests that detect pieces of SARS-CoV-2) reported electronically to WEDSS or entered manually into the WEDSS electronic laboratory module. Because manual entry of negative test results into electronic laboratory module takes more time, this number underestimates the total number of Wisconsin residents with negative test results.

Data shown are subject to change. For more information see the FAQ page. As individual cases are investigated by public health, there may be corrections to the status and details of cases that result in changes to this information. Some examples of corrections or updates that may result in the case or death counts going up or down, include:

  • Update or correction of case’s address, resulting in a change to their location of residence to another county or state
  • Correction to laboratory result
  • Correction to a case’s status from confirmed to unconfirmed (for example, if they were marked as confirmed because a blood test detecting antibodies was positive instead of a test detecting the virus causing COVID-19)
  • De-duplication or merging and consolidation of case records
  • Update of case’s demographic information from missing or unknown to complete information

For information on testing, see: COVID-19, testing criteria section.

We plan to update our data daily by 2 p.m.

    Back to a list of charts on this page.


    Trend of COVID-19 cases among health care workers calculated weekly

    Understanding our data: What does this chart mean?

    Because of the nature of their work, health care workers have an increased risk of exposure to COVID-19. Measuring trends in health care worker infection provides information about how COVID-19 is spreading, how well health care workers are being protected, and overall capacity at our health care facilities. If we see high rates of health care workers who are unable to report to work because they test positive for COVID-19, that causes a strain on the health system.

    Data in this figure are based on date of symptom onset or diagnosis and are presented as weekly totals. Each date represents a weekly data point. Data for the most recent three weeks are shown in a box (gray) because they are not yet complete. Further data analysis shows that from the time a patient's symptoms begin, it often takes three weeks for them to be tested, diagnosed, and interviewed to determine their occupation.

    Please note that the Wisconsin Electronic Disease Surveillance (WEDSS) system underwent routine maintenance and enhancements over the weekend of October 16-18, 2020. Due to this temporary pause in reporting, multiple days of data were uploaded at once, affecting the single day count for the visualizations during that time.

    About our data: How do we measure this?

    Data source: Wisconsin Electronic Disease Surveillance System (WEDSS). 

    Cases were included as being a health care worker if they had documentation of an occupation in the health care field. This includes a broad range of occupations in the health care field, including nurses, physicians, surgeons, physician assistants, health care support staff, emergency medical technicians and paramedics, dentists and other dental health workers, and pharmacists.

    Back to a list of charts on this page.


    Understanding our data: What does this chart mean?

    As we continue to fight COVID-19 in our state, one of our main goals is to not overwhelm the hospitals. We must maintain the capacity of our healthcare system and protect our frontline health care workers. This way, the amount of staffing and beds we have in our state are able to treat and serve all Wisconsinites who need hospitalization from COVID-19. This is key, because if we don’t have capacity in our healthcare system, we cannot take care of our families, friends, or neighbors who may become ill with COVID-19, or have other health needs.

    The amount of ventilators available gives us an idea of how well equipped our hospital systems are to not only handle COVID-19 patients, but other patients who may also need ventilation. For ventilator use, we are currently reporting the total of machines capable of providing ventilation. This is done in line with new guidance from the U.S. Department of Health and Human Services (HHS).

    Previously, we would report hospital ventilator supply only for “general use bedside ventilators,” which are most common for treating COVID-19 patients in need. However, when necessary, there are additional ventilator machines that can be used. By capturing the total amount of ventilators statewide, we are able to get a better measure of hospital capabilities should a growing amount of ventilators be needed by COVID-19 patients. You may notice that the proportion of ventilators available is now higher than before—this is because we are looking at how many ventilators are available compared to all the different ventilator machines. Before we were only comparing available ventilators to the total of “general use bedside ventilators” available.

    About our data: How do we measure this?

    Data source: Hospital capacity data are from the Emergency Management Resource (EMResource) system, as reported on a daily basis by participating hospitals.

    Hospitals are not required to report to EMResource, though many hospitals in Wisconsin regularly provide information on hospital preparedness during COVID-19. Since reporting is not mandatory, the data displayed in the hospital capabilities dashboard below may not accurately represent the current healthcare system capacity in Wisconsin.

    Please note that EMResource data underwent system-wide changes on 7/21/2020 to comply with the U.S. Department of Health and Human Services data changes. As a result, reporting differences may appear between data entered before and after that date.

    Ventilator capacity includes the use of all of the following types of equipment in the hospitals:

    • General Use Bedside Ventilators
    • Anesthesia Machines
    • BiPAP Machines
    • ECMO Machines
    • Home Use Ventilators
    • Oscillators / High Frequency Ventilators
    • Weight Limited NICU Bedside Ventilators

    We plan to update our data each day by 4 p.m.

    Back to a list of charts on this page.


    How can I download DHS COVID-19 data?

    All DHS COVID-19 data is available for download directly from the chart on the page. You can click on the chart and then click "Download" at the bottom of the chart (gray bar).

    For spatial and mapped data visit one of the following links:

    You can find more instructions on how to download COVID-19 data or access archived spatial data by visiting our FAQ page. The data dictionary(PDF) provides more information about the different elements available in the data above.

    Last Revised: October 21, 2020