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Bryan Richards (Former Employee)

Science and Products

Mule deer in Wyoming with snow covered mountains in the distance

Chronic Wasting Disease

Chronic wasting disease (CWD) is an emerging infectious disease that is fatal to free-ranging and captive animals in Cervidae, the deer family. CWD is one member of a family of diseases called transmissible spongiform encephalopathies (TSEs), and is thought to be caused by prions. CWD is the only TSE known to affect free-ranging wildlife.
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, National Wildlife Health Center
Chronic Wasting Disease

Chronic Wasting Disease

Chronic wasting disease (CWD) is an emerging infectious disease that is fatal to free-ranging and captive animals in Cervidae, the deer family. CWD is one member of a family of diseases called transmissible spongiform encephalopathies (TSEs), and is thought to be caused by prions. CWD is the only TSE known to affect free-ranging wildlife.
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Quarterly wildlife mortality report July 2020 Quarterly wildlife mortality report July 2020

The USGS National Wildlife Health Center (NWHC) Quarterly Mortality Report provides brief summaries of epizootic mortality and morbidity events by quarter. The write-ups, highlighting epizootic events and other wildlife disease topics of interest, are published in the Wildlife Disease Association quarterly newsletter. A link is provided in this WDA newsletter to the Wildlife Health...
Authors
Bryan J. Richards, Anne Ballmann, Barbara Bodenstein, Robert J. Dusek, Jonathan M. Sleeman
By
Ecosystems Mission Area, National Wildlife Health Center

Chronic wasting disease—Research by the U.S. Geological Survey and partners Chronic wasting disease—Research by the U.S. Geological Survey and partners

Introduction Chronic wasting disease (CWD) is the only transmissible spongiform encephalopathy, a class of invariably fatal neurodegenerative mammalian diseases associated with a misfolded cellular prion protein found in wild free-ranging animals. Because it has a long incubation period, affected animals in Cervidae (the deer family; referred to as “cervids”) may not show signs of...
Authors
M. Camille Hopkins, Christina M. Carlson, Paul C. Cross, Christopher J. Johnson, Bryan J. Richards, Robin E. Russell, Michael D. Samuel, Glen A. Sargeant, Daniel P. Walsh, W. David Walter
By
Ecosystems Mission Area, Cooperative Research Units, National Wildlife Health Center, Northern Rocky Mountain Science Center, Office of Science Quality and Integrity

Quarterly wildlife mortality report July 2019 Quarterly wildlife mortality report July 2019

No abstract available.
Authors
Bryan J. Richards, Robert J. Dusek
By
Ecosystems Mission Area, National Wildlife Health Center

Quarterly wildlife mortality report April 2019 Quarterly wildlife mortality report April 2019

No abstract available.
Authors
Bryan J. Richards, Daniel A. Grear, C. LeAnn White, Thierry M. Work, Emily A Underwood
By
Ecosystems Mission Area, National Wildlife Health Center

Quarterly wildlife mortality report January 2019 Quarterly wildlife mortality report January 2019

The USGS National Wildlife Health Center (NWHC) Quarterly Mortality Report provides brief summaries of epizootic mortality and morbidity events by quarter. The write-ups, highlighting epizootic events and other wildlife disease topics of interest, are published in the Wildlife Disease Association quarterly newsletter. A link is provided in this WDA newsletter to the Wildlife Health...
Authors
Bryan J. Richards, Barbara Bodenstein, Robert J. Dusek, Tonie E. Rocke, Katherine L. D. Richgels
By
Ecosystems Mission Area, National Wildlife Health Center

USGS quarterly wildlife mortality report October 2018 USGS quarterly wildlife mortality report October 2018

No abstract available.
Authors
Bryan J. Richards, Robert J. Dusek, Anne Ballmann, Natalie T. Nguyen
By
Ecosystems Mission Area, National Wildlife Health Center

Science and Products

Mule deer in Wyoming with snow covered mountains in the distance

Chronic Wasting Disease

Chronic wasting disease (CWD) is an emerging infectious disease that is fatal to free-ranging and captive animals in Cervidae, the deer family. CWD is one member of a family of diseases called transmissible spongiform encephalopathies (TSEs), and is thought to be caused by prions. CWD is the only TSE known to affect free-ranging wildlife.
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, National Wildlife Health Center
Chronic Wasting Disease

Chronic Wasting Disease

Chronic wasting disease (CWD) is an emerging infectious disease that is fatal to free-ranging and captive animals in Cervidae, the deer family. CWD is one member of a family of diseases called transmissible spongiform encephalopathies (TSEs), and is thought to be caused by prions. CWD is the only TSE known to affect free-ranging wildlife.
Learn More
No Result Found
No results found.
Filter Total Items: 25

Quarterly wildlife mortality report July 2020 Quarterly wildlife mortality report July 2020

The USGS National Wildlife Health Center (NWHC) Quarterly Mortality Report provides brief summaries of epizootic mortality and morbidity events by quarter. The write-ups, highlighting epizootic events and other wildlife disease topics of interest, are published in the Wildlife Disease Association quarterly newsletter. A link is provided in this WDA newsletter to the Wildlife Health...
Authors
Bryan J. Richards, Anne Ballmann, Barbara Bodenstein, Robert J. Dusek, Jonathan M. Sleeman
By
Ecosystems Mission Area, National Wildlife Health Center

Chronic wasting disease—Research by the U.S. Geological Survey and partners Chronic wasting disease—Research by the U.S. Geological Survey and partners

Introduction Chronic wasting disease (CWD) is the only transmissible spongiform encephalopathy, a class of invariably fatal neurodegenerative mammalian diseases associated with a misfolded cellular prion protein found in wild free-ranging animals. Because it has a long incubation period, affected animals in Cervidae (the deer family; referred to as “cervids”) may not show signs of...
Authors
M. Camille Hopkins, Christina M. Carlson, Paul C. Cross, Christopher J. Johnson, Bryan J. Richards, Robin E. Russell, Michael D. Samuel, Glen A. Sargeant, Daniel P. Walsh, W. David Walter
By
Ecosystems Mission Area, Cooperative Research Units, National Wildlife Health Center, Northern Rocky Mountain Science Center, Office of Science Quality and Integrity

Quarterly wildlife mortality report July 2019 Quarterly wildlife mortality report July 2019

No abstract available.
Authors
Bryan J. Richards, Robert J. Dusek
By
Ecosystems Mission Area, National Wildlife Health Center

Quarterly wildlife mortality report April 2019 Quarterly wildlife mortality report April 2019

No abstract available.
Authors
Bryan J. Richards, Daniel A. Grear, C. LeAnn White, Thierry M. Work, Emily A Underwood
By
Ecosystems Mission Area, National Wildlife Health Center

Quarterly wildlife mortality report January 2019 Quarterly wildlife mortality report January 2019

The USGS National Wildlife Health Center (NWHC) Quarterly Mortality Report provides brief summaries of epizootic mortality and morbidity events by quarter. The write-ups, highlighting epizootic events and other wildlife disease topics of interest, are published in the Wildlife Disease Association quarterly newsletter. A link is provided in this WDA newsletter to the Wildlife Health...
Authors
Bryan J. Richards, Barbara Bodenstein, Robert J. Dusek, Tonie E. Rocke, Katherine L. D. Richgels
By
Ecosystems Mission Area, National Wildlife Health Center

USGS quarterly wildlife mortality report October 2018 USGS quarterly wildlife mortality report October 2018

No abstract available.
Authors
Bryan J. Richards, Robert J. Dusek, Anne Ballmann, Natalie T. Nguyen
By
Ecosystems Mission Area, National Wildlife Health Center
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