• What is a Corvid?
A corvid is a bird that is a member of the Corvidae family (or crow family), which includes crows, blue jays and ravens. Corvids appear to be especially susceptible to West Nile virus infection and can be used as an early indicator of the virus in an area.

• Corvids Reported by Zip Code, 2012 
Map of corvids reported via the on-line reporting form found dead or with symptoms of West Nile virus infection.

• WNV Positive Corvids by Zip Code, 2012 
Map of corvids testing positive for West Nile virus in 2012 at MSU, DCPAH.

• Corvid Testing Results by County, 2012 
Map of corvids testing positive for West Nile virus in 2012.

• Mosquitoes Positive for WNV Testing by Zip Code, 2012 
Map of results of testing on mosquitoes by MSU, Department of Microbiology and Molecular Genetics.

• WNV Equine Testing Results, 2012 
Map of results of testing on equines (horses) submitted to MSU, DCPAH.

• Wildlife, Domestic, and Zoo Animal Testing Results - 2012 
Map of results of testing on wild birds and mammals (non corvid), domestic and zoo animals (excludes horses) submitted to MSU, DCPAH.

• WNV Human Cases, 2012 
Map of human testing results confirmed by the Michigan Department of Community Health, Bureau of Laboratories.

• Other Arboviruses in Humans Testing Results, 2012 
Map of results of testing for arboviruses (insect-borne viruses) other than WNV in humans, as diagonosed by MDCH, BOL.

• Week-by-Week Summary of Corvids Reported by County, 2012 
Table of corvids reported via the on-line reporting form, by week and by county. Corvid numbers per week are based on the date the bird was observed sick or dead. Only counties with corvid birds reported will be listed.

• Corvids Reported by County
Table of corvids reported via the on-line reporting form, updated daily at 4 am. Only counties with corvids reported sick or dead will be listed in the drop-down box.

• All Wildlife Reported
Table of all wildlife reported (includes corvids) via the on-line reporting form, updated daily at 4 a.m.

• Wildlife, Domestic and Zoo Animal Testing Results (excludes corvids) 
Table of testing results on non-corvid birds and mammals submitted to the MDNR and MSU, DCPAH. Table is updated as results become available.

• WNV Human Cases, 2012 
West Nile virus human cases by county, age, sex and fatality, confirmed by the Michigan Department of Community Health, Bureau of Laboratories.

• Mosquito Testing Results, 2012 
Table of testing results on mosquitoes tested by MSU, Department of Microbiology and Molecular Genetics.

• 2011 Surveillance Maps

• 2010 Surveillance Maps

• 2009 Surveillance Maps

• 2008 Surveillance Maps

• 2007 Surveillance Maps

• 2006 Surveillance Maps

• 2005 Surveillance Maps

• 2004 Surveillance Maps

• 2003 Surveillance Maps

• 2002 Surveillance Maps

• 2001 Surveillance Maps

• 2011 Tables

• 2010 Tables

• 2009 Tables

• 2008 Tables

• 2007 Tables

• 2006 Tables

• 2005 Tables

• 2004 Tables

• 2003 Tables

• 2002 Tables

• 2001 Tables