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West Nile Virus

Fight the Bite! 
Welcome to the Washtenaw County West Nile virus site! Follow the links below to learn more about the virus, including how to prevent yourself, your family and your community members from becoming infected.

West Nile Virus Activity in Washtenaw County - 2015

updated 9/24/15

Human Cases:
WNV Fever

Human Cases:

Human Deaths

Blood Donors

Horse Cases

Animal Cases






*crow, 48108 & 48130 area codes
Archive of West Nile Virus Activity (2002-2014)

Dead Bird Reporting

American Crow (Corvus brachyrhynchos)

Dead birds, especially dead corvids (crows, ravens or blue jays), can be an indicator of West Nile virus in a particular geographic area. Washtenaw County Public Health will not be testing any dead birds for West Nile virus or any other diseases.

To report a dead bird, please enter the information on the State of Michigan Sick or Dead Bird & Mammal Reporting Website.


  • A note about Avian Influenza ("bird flu"): Avian influenza is a virus that can infect both free-ranging and domestic poultry such as chickens, turkeys, quail, geese and wild migratory waterfowl. State and federal agencies are working together to conduct avian influenza surveillance and to monitor health of poultry, livestock, wildlife and residents in Michigan. Residents who notice the death loss of three or more free-ranging birds should report it to DNR at 517-336-5030. If your domestic flock is experiencing severe illness or multiple death losses, contact MDARD at 800-292-3939 or for after-hours emergencies call 517-373-0440. Other dead or sick bird reports should be entered on the State of Michigan Sick or Dead Bird & Mammal Reporting Website.

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