Researchers are now racing to come up with strategies to at least slow the spread of the disease in deer and reduce the chances of it spreading to more vulnerable caribou populations — or, worse, humans.

The Pennsylvania Game Commission is reporting that two deer have tested positive for Chronic Wasting Disease (CWD) in a new area of the state. The two deer, both adult males, were found in Luzerne County. One was harvested by a hunter while the other was from a captive facility, the game commission said.

Two deer in Cleburne County and another deer in Baxter County have tested positive for chronic wasting disease, according to the Arkansas Game and Fish Commission.

The cull will be focused on Cranbrook and Kimberley, where a total of five cases of the disease have been found.

Sixty positive cases of Chronic Wasting Disease in deer were detected during surveillance conducted in eastern Nebraska during the November firearm deer season, Nebraska Game and Parks states.