Efforts continued with CWD surveillance through sampling of hunter killed deer statewide and mandatory deer checks in the Oneida-Madison County CWD Containment Area. Despite testing approximately 7,470 deer (including more than 1,400 deer from the CWD Containment Area), no cases were detected. CWD is a rare neurological disease that affects the brains of deer, elk and moose, causing the animals to become emaciated, lose body functions and eventually die. CWD surveillance began in New York in 2002, with increased efforts since 2005 after the disease was detected in five captive and two wild deer in Oneida County. Since 2002, over 26,250 samples have been collected throughout the state, including almost 5,300 samples from the Oneida-Madison County CWD Containment Area, and no additional cases have been detected.