We test for CWD in free-ranging white-tailed deer using the medial retropharyngeal lymph node, which requires a cut to the neck right behind the jaw. If you intend to mount your harvest, you can work with your taxidermist to pull a sample. Otherwise, you can bring an intact carcass or just the head to your local DNR Unit so our field staff can pull your sample. Additionally, if you are interested in learning how to collect your own sample, check out the video and other resources produced by Iowa State University Extension and Outreach here. Since lymph nodes come in pairs, only one “A” lymph node will go to the lab for testing. Hunters should retain the “B” lymph node until results have been released.
If you are interested in CWD testing through the hunter submission pathway, contact your local DNR Wildlife Biologist to arrange a time for drop-off. The cost of testing through the VDL is $25 per sample.
To submit a sample for testing, please go to the web portal:
- CWD Testing Web Portal
- This submission allows for online payment. Your Web ID from this submission will be needed at the time of sample collection.
- To send samples directly to the VDL, place the “A” lymph node in a clean Ziploc bag labeled with your Web ID. Ship to the address below using a standard envelope or other shipping container. Ice packs are optional.
Veterinary Diagnostic Laboratory
Iowa State University
1937 Christensen Drive
Ames, IA 50011-1100
Please note, cervids harvested outside of Iowa are also eligible for testing through the VDL. For elk, both brainstem (obex) and lymph node must be screened.