Three scientists were dispatched to Japan to visit the National Institute of Animal Health and Hokkaido University and learn the diagnosis and surveillance technique of chronic wasting disease (CWD) from December12 to December 22 in 2011 to establish the diagnosis and surveillance techniques of transmissible spongiform encephalopathies (TSEs) in wildlife. The diagnostic techniques and related knowledge can be applied to the diagnosis and surveillance of TSEs in wildlife and also to serve as refe