Mapping Eastern Equine Encephalitis Virus Risk for White-Tailed Deer in Michigan

Authors

Joni A. Downs, University of South FloridaFollow
Garrett Hyzer, University of South FloridaFollow
Eric Marion, University of South Florida
Zachary J. Smith, University of South FloridaFollow
Patrick Vander Kelen, Washington State Department of Health, Olympia, WA
Thomas R. Unnasch, University of South FloridaFollow

Document Type

Article

Publication Date

2015

Keywords

Arbovirus, Disease mapping, GIS, Odocoileus virginianus, Wildlife

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.apgeog.2015.09.006

Abstract

Eastern equine encephalitis (EEE) is a mosquito-borne viral disease that is often fatal to humans and horses. Some species including white-tailed deer and passerine birds can survive infection with the EEE virus (EEEV) and develop antibodies that can be detected using laboratory techniques. In this way, collected serum samples from free ranging white-tailed deer can be used to monitor the presence of the virus in ecosystems. This study developed and tested a risk index model designed to predict EEEV activity in white-tailed deer in a three-county area of Michigan. The model evaluates EEEV risk on a continuous scale from 0.0 (no measurable risk) to 1.0 (highest possible risk). High risk habitats are identified as those preferred by white-tailed deer that are also located in close proximity to an abundance of wetlands and lowland forests, which support disease vectors and hosts. The model was developed based on relevant literature and was tested with known locations of infected deer that showed neurological symptoms. The risk index model accurately predicted the known locations, with the mean value for those sites equal to the 94th percentile of values in the study area. The risk map produced by the model could be used refine future EEEV monitoring efforts that use serum samples from free-ranging white-tailed deer to monitor viral activity. Alternatively, it could be used focus educational efforts targeted toward deer hunters that may have elevated risks of infection.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Applied Geography, v. 64, p. 66-73

Scholar Commons Citation

Downs, Joni A.; Hyzer, Garrett; Marion, Eric; Smith, Zachary J.; Kelen, Patrick Vander; and Unnasch, Thomas R., "Mapping Eastern Equine Encephalitis Virus Risk for White-Tailed Deer in Michigan" (2015). School of Geosciences Faculty and Staff Publications. 1460.
https://digitalcommons.usf.edu/geo_facpub/1460