HARRISBURG, Pa. (CBS) — A rat in a Pennsylvania home-breeding facility has tested positive for the Seoul virus.

Pennsylvania Health Secretary Dr. Karen Murphy said in a statement that the infected rat was purchased from a Tennessee breeding facility with confirmed Seoul virus infections.

READ MORE: Flames Put Out After Tearing Through Mount Laurel Home

The remaining rats in the Pennsylvania facility were euthanized to prevent the spread of the disease.

“We are working very closely with the CDC to monitor any Seoul virus activity and prevent further exposure,” Murphy said.

Trump Sign Removed From Atlantic City Casino Up For Auction On eBay

READ MORE: Police Investigating After Person Was Struck By Car On Route 38 In Maple Shade

The Seoul virus is a type of hantavirus that is found worldwide and spread by rodents, specifically the brown or Norway rat. People can become infected with the virus after coming into contact with the urine, droppings or saliva of infected rodents.

There have been no confirmed human infections of the Seoul virus in Pennsylvania.

According to the CDC, there are currently 13 human infections nationwide.

MORE NEWS: Big Decision Looming For SEPTA Employees As Union Fights For Better Wages For Its Workers

There is no effective treatment for Seoul virus infections.