Respiratory Virus Death Data
These charts provide a weekly breakdown of the percent of deaths reported in Wisconsin associated with the respiratory viruses SARS-CoV-2 (COVID-19), influenza, and respiratory syncytial virus (RSV), as well as deaths associated with pneumonia where a specific viral cause is not reported. The data are available statewide and can be further visualized by Wisconsin public health region.
Additional respiratory illness data
Click the following buttons to see a current snapshot summary of respiratory virus activity, the percent of emergency department (ED) visits for a respiratory illness, or the laboratory testing data for respiratory illnesses.
Percentage of all reported deaths associated with a viral respiratory illness or pneumonia by week
Percentage of all reported deaths associated with COVID-19, influenza, RSV, or pneumonia by week
Data shown are subject to change and will be updated as more information is available.
How to use the data visualizations
The dashboards on this page are interactive and show the percent of deaths among Wisconsinites that are associated with COVID-19, influenza, RSV, and pneumonia. This information comes from death records. Death records can include multiple contributing causes of death.
Each visual includes a slider allowing you to change the date range for that visual. Each visual also includes a dropdown menu allowing you to filter data to show data for one of the five Wisconsin public health regions.
The first visual shows the combined percent of deaths by week associated with respiratory viruses; this includes deaths associated with COVID-19, influenza, RSV, and pneumonia.
The second visual shows the percent of deaths by week associated with COVID-19, influenza, RSV, or pneumonia. Additionally, you can use the check boxes to add or remove lines representing deaths associated with each illness.
Understanding the data categories in the second visual
| Data Displayed | Data Description |
|---|---|
| COVID-19 | COVID-19 is listed as a cause of death. Example: A death record with both COVID-19 and influenza listed as a cause of death, would be included in the orange COVID-19 line and blue influenza line. |
| Influenza | Influenza is listed as a cause of death. Example: A death record with both influenza and RSV listed as a cause of death would be included in the blue influenza line and the magenta RSV line. |
| RSV | RSV is listed as a cause of death. Example: A death record with RSV and COVID-19 listed as a cause of death would be included in the magenta RSV line and orange COVID-19 line. |
| Pneumonia | Pneumonia is listed as a cause of death and COVID-19, influenza and RSV are not listed as a cause of death. Example: A death record with pneumonia and COVID-19 listed as causes of death would not be included in the green pneumonia line. |
| Pneumonia, COVID-19, influenza, or RSV | Pneumonia, COVID-19, influenza, or RSV is listed as a cause of death. Example: A death record with any of these conditions listed as a cause of death would be included in the black line. |
Technical data notes and data sources
Data source: The data in these visualizations come from data from Wisconsin death records filed with The State Vital Records Office.
Deaths were included on this dashboard if a respiratory illness was listed as the underlying cause, contributing cause, immediate cause, or other significant condition contributing to a death on the death record, as detailed in the table below. For new deaths with no ICD-10 codes assigned to the underlying or contributing cause of death, literal text in the immediate cause, other cause, or other significant conditions fields are used. Once an ICD-10 code is assigned to a death, only ICD-10 codes are used to classify the death. This means that categorization of cause of death is subject to change as ICD-10 codes are assigned or refined.
Visuals will be updated weekly, but the most recent data will be two weeks behind to allow for more complete cause of death information.
ICD 10 codes for underlying or contributing cause of death
| COVID-19 | Influenza | RSV | Pneumonia |
|---|---|---|---|
| U071, U072 | J09-J11 | J121, J205, J210 | J120, J18 |
Immediate cause of death, other causes of death, or other significant conditions text used for classification*
| COVID-19 | COVID-19 | Influenza | Influenza | RSV | RSV | Pneumonia | Pneumonia |
|---|---|---|---|---|---|---|---|
| Inclusion | Exclusion | Inclusion | Exclusion | Inclusion | Exclusion | Inclusion | Exclusion |
| "19," "covid," "coronavirus," "corona," "virus," "ncov" | "negative" | "Influenza," "Flu" | "Parainfluenza," "Para Influenza," "Haemophilus Influenza," all other entries | "RSV," "syncytial," "bronchiolitis" | N/A | "Pneumonia" | N/A |
*Literal text only used until ICD-10 codes are assigned to a death record