ALBANY, N.Y. (AP) — New York environmental officials say none of the more than 2,400 deer tested for chronic wasting disease during hunting season showed signs of the disease.

The highly contagious disease is fatal to deer, elk and moose and is in the same family as “Mad Cow” disease. It hasn't been shown to infect humans.

Despite the good news, the state Department of Environmental Conservation says that chronic wasting disease still poses a potential threat to New York's white-tailed deer population.

State officials have been trying for years to keep infectious material out of the state with the help of hunters.

In November, New York tightened rules on hunters bringing in game from Ohio after a confirmed case of chronic wasting disease in a deer.