Chronic wasting disease (CWD) is a contagious, fatal brain disease that affects members of the deer family. It was discovered in Pennsylvania's free-ranging, white-tailed deer in 2012. CWD continues to be a threat to deer and elk in the Commonwealth.
Since then, the number of deer testing positive for CWD has risen and the area in which it is found has expanded.
To learn more about CWD, where it has been found, testing, surveillance, and research, click the photo above.