Collect a section of brain stem that includes obex and one medial retropharyngeal lymph node. Place both tissues in 10% buffered formalin. If buffered formalin is not available, tissues can be packed in ice and submitted fresh. It is also acceptable to submit frozen tissues when submission is delayed, although this method is less desirable. Please use the CWD Submission Form and provide the owner's name, address, animal identification, sex and age.
Please Note: It is critical for test accuracy that the proper lymph node be submitted. Improper samples will be reported as unsuitable for testing. If you would like training on CWD sample submission procedures, please contact the Minnesota Board of Animal Health at 651-296-2942 or toll free at 800-627-3529.