Category Archives: chronic wasting disease

Deer density and disease prevalence influence transmission of chronic wasting disease in white-tailed deer

Deer density and disease prevalence influence transmission of chronic wasting disease in white-tailed deer
Ecosphere, Jan 2013

We evaluated the influence of deer density, landscape features, and soil clay content on transmission of chronic wasting disease (CWD) in young white-tailed deer in south-central Wisconsin, USA. We evaluated how frequency-dependent, density-dependent, and intermediate transmission models predicted CWD incidence rates in harvested yearling deer. An intermediate transmission model, incorporating both disease prevalence and density of infected deer, performed better than simple density- and frequency-dependent models. Our results indicate a combination of social structure, non-linear relationships between infectious contact and deer density, and distribution of disease among groups are important factors driving CWD infection in young deer.