Home covid New Data Snapshot shows 52% of Dane County’s new cases live outside...

New Data Snapshot shows 52% of Dane County’s new cases live outside Madison


Public Health of Madison and Dane County released their new Data Snapshot for October 27 – November 9 which showed the spread of COVID-19 Dane County continues to shift outside of Madison as the rate of new cases continues to increase.

Over the past two weeks, Dane County has seen an overall rate of 93 new cases per 10,000, up from last week’s 71 new cases per 10,000. According to the chart below, Marshall, Brooklyn, Waunakee, Sun Prairie and Fitchburg have significantly higher rates than the County overall. Overall, as compared to last week, Black Earth has had the largest percent increase.


As noted previously, in September, only 28 percent of cases resided outside of Madison, and data from October reveal that it is was at 56 percent for that month.  For the past two weeks, according to the data, 52 percent of positive cases from Dane County reside outside of Madison. This morning, Madison365 has updated our weekly map to showcase the increase in the number of cases in the county by census tract for the weeks of October 22 – November 5. We’ve also noted the top 15 Dane County tracts with the largest increases during this time.

From October 27 – November 9, there were 5,094 total cases with 13 percent part of a cluster and or facility investigation. Of those cases, 3,245 were fully interviewed and the following was found:

  • 33 percent of cases had household contact with another COVID-19 case
  • 31 percent of cases had non-household contact with another COVID-19 case
  • 24 percent of cases attended a gathering or party in the past two weeks
  • 12 percent of cases were from UW; 520 were UW students and 104 were college staff
  • 11 percent were associated with a cluster

Also provided from the available data, the following associated cases from unique clusters and facility investigations with non-clusters:

  • Workplaces, not public facing (100 total cases) – 33 unique clusters in workplaces that are not public-facing, with 77 associated cases, and 13 facility investigations with 23 more associated cases
  • Public facing workplaces (42 total cases) – 15 unique clusters in public-facing business/services with 32 associated cases and eight facility investigations with 10 more associated cases
  • Bar/Restaurants (22 cases total) – 10 unique clusters with 17 associated and three facility investigations with five more associated cases
  • Childcare facilities (51 cases total)  – 14 unique with 28 associated cases (14 children and 14 adults) and 22 facility investigations of non-clusters with 23 more associated cases (11 children and 12 adults)
  • Skilled Nursing (89 total cases) – eight unique clusters with 88 associated cases and one facility investigation with one more associated case
  • Health Care facility (51 total cases) – 12 unique clusters with 49 associated cases and two facility investigations with 2two more associated cases
  • Schools (66 total cases)  – 7 unique clusters with 32 associated cases (13 children and 19 adults) and 40 facility investigations with 34 more associated cases (10 children and 24 adults)

For October 27 – November 9, Dane County has averaged 364 cases per day, an increase from last week’s 277 – which keeps this metric in the red according to PHMDC’s reopening plan. The data also shows, for this two week period, the percentage of positive tests for the most recent 14 days has increased from last week’s update of 6.0 percent to 7.4 percent – keeping that metric yellow.

The percentage of cases contacted within 48 hours dropped to an all time low down of 16 percent from last week’s 19 percent. The proportion of new cases from October 27 – November 9 who did not know where they had contracted COVID-19 decreased to 29 percent. Both of these metrics remain in the red.

The snapshot included a look at hospitalizations and cases within our communities of color, specifically calling out the continuing disparity amongst our Hispanic/Latinx population as they continue to be overrepresented not only in cases, but in hospitalizations. During this time period, 105 people were hospitalized. The Hispanic/Latinx community make up six percent of the population in Dane County and for those two weeks, were eight percent of testing. However, Hispanic/Latinx residents were 19 percent of cases and 15 percent of hospitalizations for October 27 through November 9.  Those who are American Indian/Alaskan, however, are 0.3 percent of the population and of testing, but 0.6 percent of cases and one percent in hospitalizations. Black people in Dane County with 6 percent of the population, were underrepresented in testing but were seven percent of cases and eight percent of hospitalizations. Asian people in Dane County who are seven percent of the population, were also underrepresented in testing with only four percent of all tests, and were three percent of cases and four percent of hospitalizations.

Hospitalizations among age groups continue to increase in the County as two percent of cases from October 27 through November 12 were hospitalized. Those in their 80s so the largest percentage of cases in the hospitalized with 22 percent during this time period, while those in their 70s were 12 percent and 90 year olds were 11 percent.

Once again, all age groups continue to increase their cases as compared to last week with children between 8-11 and adults between 18-22 growing the largest .


Madison365 will have an update numbers for the state later this afternoon.