The Wisconsin Department of Health Services has a website devoted to information on the virus. For example, as of earlier today (Thursday, March 19), 155 people have tested positive for the virus in Wisconsin. But, 2192 people who have been tested, were negative. The web page, which is updated daily by 2 p.m. is perhaps your best source for daily updates.
Locally, there have been no reported cases in Green Lake County and 14 in Fond du Lac County. The largest number of positive results are in Milwaukee (62) and Dane County (27), the state’s highest population centers.