Terrestrial Wildlife Diseases

Chronic wasting disease (CWD) is a fatal disease of deer, elk, and moose and has been spreading in North America for the past two decades. The disease is spread by infected body fluids. Animals can become infected by coming into direct contact with a CWD-infected animal, or an infected animal can leave behind fluids (e.g., saliva, urine) that an uninfected animal will come into contact later...

Chronic Wasting Disease (CWD) infects and kills ungulates (deer, elk, moose), and has been spreading across North America for the past 20 years. Some ungulate populations have declined because of CWD and there are no viable vaccines or treatments for this disease. Therefore, tools that assist wildlife managers in preventing and mitigating CWD can be powerful assets in protecting our nation’s big...

The SARS-CoV-2 virus is known to infect and cause severe disease, such as respiratory distress and death, in mustelids, including farm-raised mink ( Mustela  lutreola  and  Neovison  vison ) and domestic ferrets ( M. putorius ). This raised concern that the virus may also pose a threat to endangered black-footed ferrets ( Mustela nigripes ) managed in captivity for breeding and recovery purposes.

Chronic wasting disease (CWD) is a fatal disease that impacts populations of deer, elk, moose, and other cervid species caused by an infectious protein called a prion.

Chronic wasting disease (CWD), a fatal neurologic disease of cervids, presents a monumental management challenge, in part because the etiological agent, an infectious prion, is extremely difficult to inactivate and can be transmitted directly or indirectly to hosts. Due to these attributes of prions, proper disposal of CWD-infected carcasses is an important consideration for management agencies to...

Chronic wasting disease (CWD) is an emerging infectious disease that is fatal to free-ranging and captive animals in Cervidae, the deer family. The development of the real-time quaking-induced conversion (RT-QuIC) assay has the potential to transform laboratory research of prions and provide new opportunities for improved surveillance and management.

USGS Researchers are collaborating to study avian and mammalian cells to detect sublethal toxin effects following exposure to harmful algal blooms.

This research effort is an interagency partnership between U.S. Geological Survey and U.S. Fish and Wildlife Service to model the social-ecological system that encompasses chronic wasting disease management in the United States. Chronic wasting disease (CWD) is a fatal, neurologically degenerative disease that impacts many cervid species in North America (e.g., elk, moose, mule deer, and white...

WARC researchers used visual encounter surveys to determine prevalence rates of snake fungal disease in south-central Louisiana.

Over the past 20 years, chronic wasting disease (CWD) in Wyoming has been spreading slowly outward from the southeastern corner of the state toward the Greater Yellowstone Area and Wyoming's elk feed grounds, where more than 24,000 elk are supplementally fed each winter.

White-nose syndrome (WNS) caused by the fungal pathogen Pseudogymnoascus destructans (Pd) has decimated hibernating bat populations across North America since it emerged 10 years ago in New York. As Pd has spread across North America, infection dynamics and mortality from WNS have varied among species and across sites. The mechanisms behind vulnerability of species across the current and expanding...

Bat Research Research collaboration: Winifred Frick (Bat Conservation International), Theodore Weller (U.S. Forest Service), Wayne Thogmartin (UMESC), Craig Willis (University of Winnipeg), and Brian Reichert (FORT) White-nose Syndrome (WNS) has caused severe declines in bat populations over the past 10 years and colony sizes at winter hibernacula have decreased on average by >90% for three...