Epidemiological surveillance for important wildlife diseases often relies on samples obtained from hunter-harvested animals. A problem, however, is that although convenient and cost-effective, hunter-harvest samples are not representative of the population due to heterogeneities in disease distribution and biased sampling. We developed an agent-based modeling framework that i simulates a deer population in a user-generated landscape, and ii uses a snapshot of the in silico deer population to simulate disease prevalence and distribution, harvest effort and sampling as per user-specified parameters. This framework can incorporate real-world heterogeneities in disease distribution, hunter harvest and harvest-based sampling, and therefore can be useful in informing wildlife disease surveillance strategies, specifically to determine population-specific sample sizes necessary for prompt detection of disease. Application of this framework is illustrated using the example of chronic wasting disease CWD surveillance in Missouri's white-tailed deer Odocoileus virginianus population. We show how confidence in detecting CWD is grossly overestimated under the unrealistic, but standard, assumptions that sampling effort and disease are randomly and independently distributed.
US Outbreaks of Zoonotic Diseases Spread between Animals & People
Studying Wild Animals for Human Health - The Atlantic
A deadly raccoon parasite that can cause severe neurological problems in infected hosts has been popping up in the South, and seven new cases of human infection in the U. Although this "raccoon roundworm" was believed to cause severe problems and even death in people who become infected, a new University of Georgia study shows that's not always the case. Researchers found that people with frequent contact with raccoons who have a higher risk of becoming infected with Baylisascaris procyonis-such as wildlife rehabilitators-did test positive for the parasite but weren't showing any symptoms. Yabsley, who also has a joint appointment with the UGA Warnell School of Forestry and Natural Resources, worked with several other researchers on the new study, recently published in the Centers for Disease Control and Prevention's journal, Emerging Infectious Diseases. Baylisascaris procyonis can spread from raccoons to other wildlife, dogs or humans. Animals become infected by either rooting through raccoon feces containing the parasite eggs or eating an infected animal.
Before an Animal Disease Becomes a Human Epidemic
Introduction: Lipidomics is an emerging field with great promise for biomarker and mechanistic studies due to lipids diverse biological roles. Clinical research applying lipidomics is drastically increasing, with research methods and tools developed for clinical applications equally promising for wildlife studies. Objectives: Limited research to date has applied lipidomics, especially of the intact lipidome, to wildlife studies.
Official websites use. Share sensitive information only on official, secure websites. Author s John Bowden , Jeremy P.