Understanding and Containing Chronic Wasting Disease

Chronic wasting disease (CWD) is a contagious and fatal neurodegenerative disease affecting cervids (deer, elk, caribou, and moose) that is threatening the health and sustainability of cervid populations across North America. CWD is caused by misfolded proteins known as prions, which can be transmitted by direct contact or environmental exposure. 

The USGS National Wildlife Health Center conducts research and provides scientific support to help wildlife managers and decision-makers address CWD. Our work advances diagnostic methods, disease surveillance, epidemiologic and ecological understanding, risk assessment, and practical decision-support tools.