1. Confirmed case of measles in Dane County.

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Data Notes for the Week of April 15

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If you’re new to the data snapshot, we publish a weekly summary of the status for each of our metrics (you can find past issues on our data and metrics page). The data below are from March 29 to April 11.


There was a significant increase in cases during this 14-day period.

The 14-day average number of cases is 75, up from 59 last week. 11% of cases were UW students or staff and 66% of tests were conducted by UW’s University Health Services (UHS). When excluding cases and tests from UHS, Dane County still has a low percent positivity of 3.1%.


A third of Dane County residents have completed their vaccine series.

33.4% of residents have completed their vaccine series and 50.7% of residents have at least one dose of vaccine. 62% of eligible Dane County residents (those who are age 16+) have received at least one dose of vaccine. 91.4% of Dane County residents age 65+ have received at least one dose of vaccine, which is the second highest among Wisconsin counties. More than 4 out of every 5 of those age 65+ have completed their series.

An average of 7,278 doses of vaccine were administered to Dane County residents each day during this 14-day period, which is an 18% increase from last week.

Based on our current 7-day average of 3,518 newly vaccinated people per day, we could expect 80% of the eligible Dane County population to have at least one dose of vaccine by May 8. Visit our website to learn more about where to get vaccinated.


Over the past four weeks, cases have significantly increased among children ages 8-17 and among adults ages 18-59.

Our chart on page four of the Snapshot outlines cases among each group compared to the prior two weeks.

It’s important for anyone—including children—who have symptoms or had an exposure to get tested. The community test site at Alliant Energy Center can now test children as young as 12 months old.

While vaccines will get us back to normal, right now, children don’t have that opportunity. By continuing to follow prevention practices that keep us well, we can help protect the kids in our community. Continue wearing masks—in social settings, at school, at sports. If you’re at a gathering and the adults are vaccinated but the children are not, the kids can still spread the virus to each other—maintain distance and gather outside. Adults in children’s lives such as parents, grandparents, coaches, and teachers should get vaccinated as soon as they can in order to protect themselves, and the children who aren’t yet able to be vaccinated!


There were no cases linked to clusters in long-term care facilities or correctional facilities during this 14-day period!

This is the first time this has happened since we began tracking case clusters! Vaccines have been a powerful tool in reducing cases and transmission in congregate living facilities and in reducing cases among ages 65+.

This content is free for use with credit to Public Health Madison & Dane County .

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