Chronic wasting disease was found in a captive deer population in north-central Iowa, the state's Department of Agriculture and Land Stewardship said. Of the herd, which was depopulated, 284 of the 356 deer (79.8%) tested positive for the disease. The owners of the herd entered into a fence maintenance agreement with the department and are required to maintain an 8-foot-high perimeter fence around the premises for 5 years. Chronic wasting disease is a fatal, degenerative neurological disease of farmed and free-ranging deer, elk and moose for which there is no known treatment or vaccine. Announcement