Respiratory Virus Data

This page is a summary snapshot of the latest information on viral respiratory illness in Wisconsin. It shows the respiratory illness activity level and trajectory for the previous week and provides key findings regarding respiratory virus transmission in Wisconsin.

What to know

What you can do

Even when respiratory illness levels are minimal or low, it is important to keep up with prevention strategies. Follow these tips to help keep you and your loved ones healthy:

  • Stay up-to-date with vaccines.
  • Take steps for cleaner air, such as gathering outside or bringing in outside air.
  • Wash your hands and practice good hygiene.
  • Cover coughs and sneezes.
  • Stay home if you are sick.

Additional precautions, such as wearing a mask and physical distancing, should be considered when illness levels are moderate or high or very high. If you or people around you have risk factors for severe illness, consider additional precautions at any time.

Last revised June 19, 2025