Chronic Wasting Disease (CWD)
- What is CWD?
- Chronic Wasting Disease (CWD) is a transmissible spongiform encephalopathy (TSE) affecting farmed and free-ranging deer, elk, and moose, in North America.
- CWD is a progressive, fatal, degenerative neurological disease. It was first recognized in 1967 as a clinical ‘wasting’ syndrome of un- known cause in captive mule deer in Colorado. CWD belongs to the family of diseases known as transmissible spongiform encephalop- athies (TSEs). TSEs include a number of different diseases affecting animals or humans including bovine spongiform encephalopathy (BSE) in cattle, scrapie in sheep and goats, and Creutzfeldt-Jacob disease (CJD) in humans. Although CWD shares certain features with other TSEs, it is a distinct disease affecting only deer, elk, and moose.
- To learn more about CWD and how you can help prevent the spread of the disease, watch our video about Chronic Wasting Disease.
TAHC CWD Herd Programs
The Texas Animal Health Commission (TAHC) provides a voluntary herd status program for species that are susceptible to CWD. Those that participate in the program must have a herd inventory performed annually by a TAHC, USDA, or accredited veterinarian.
For more information about the CWD herd program, call your TAHC region office or 800-550-8242 x777.
USDA CWD Herd Programs
For Producers: Find a TAHC Certified CWD Veterinarian
This is a list of veterinarians that have authorized TAHC to publish their information. To determine if a veterinarian not listed is a TAHC Certified CWD Veterinarian for antemortem CWD testing, please contact the TAHC Authorized Personnel Department at email@example.com or call Laura Leal at (512) 719-0761 or Dr. Susan Culp at (512) 719-0716.
Rules and Regulations
- The Chronic Wasting Disease regulations are posted on the Secretary of State website.
- Code of Federal Regulations:CWD Herd Certification Program and Interstate Movement of Farmed or Captive Deer, Elk, and Moose; Final Rule
Movement Requirements and Records
- TAHC Movement Requirements for:Cervid (White-tailed and Mule Deer).
- TAHC Movement Requirements for:Exotic Livestock and Ratites.
- TAHC Instructions for CWD Susceptible Species Movement Record.
- TAHC Instructions for CWD Susceptible Species Inventory.
Texas Parks and Wildlife Department (TPWD) Mandatory CWD Testing Requirements and Check Stations
Hunters who harvest mule deer, white-tailed deer, or elk within the Trans-Pecos and Pahnhandle CWD Containment and Surveillance Zones are REQUIRED to bring their animals to a TPWD check station within 24 hours of harvest. TAHC and TPWD urges voluntary sampling of hunter harvested deer and other CWD susceptible species in the Medina area CWD Surveillance Zone. The map of the check stations can be found on the TPWD Website.
TAHC Chronic Wasting Disease Zones
- Video: CWD Containment and Surveillance Zone Requirements
- Map: TAHC Chronic Wasting Disease Zone
- Map: All Chronic Wasting Disease Zones
TAHC Information Resources
- Brochure: TAHC Chronic Wasting Disease (CWD)
En Español: La Enfermedad del Desgaste Cronico
- Brochure: CWD Postmortem Testing Frequently Asked Questions
- CWD positive cases in Texas can be viewed on the TPWD website.
- Chronic Wasting Disease (CWD) Herd Plan for Trace-Forward Exposed Herd with Testing of Exposed Animals (July 2015)