Zika Virus

Zika virus is spread to people primarily through the bite of an infected mosquito, but can also be transmitted through sexual interaction or from mother to child. The mosquitoes that can become infected with and spread Zika virus live in many parts of the world, including parts of the United States. The species of mosquitoes that are known to transmit Zika virus are not found in Wisconsin.


  • The Florida Department of Health and the Texas Department of State Health Services have identified certain areas in Florida and Texas where Zika is being spread by local mosquitoes. For more detailed information on local transmission and travel advisories, see The Centers for Disease Control’s (CDC) Zika Virus Update for Florida and Texas.
  • There have been travel-related Zika virus infections confirmed in Wisconsin. Case numbers are updated weekly.
  • New Communication Resources: DHS has developed travel-related one page flyers on traveling to warmer destinations during summer vacation.


Wisconsin Travel-Related Zika Virus
Updated June 21
, 2017

  2016 2017
Confirmed Cases 63 4
Probable Cases* 0 0
Undetermined Flavivirus, Confirmed 1 1
Total Tested 1062 622

* Probable cases have presumptive positive laboratory results without confirmatory CDC testing.






Last Revised: June 21, 2017