For the third time since December 2015, a cow in Perth County has tested positive for rabies.
According to the Perth District Health Unit, the latest case involves a calf from the Gowanstown area, north of Listowel.
A cow south of Listowel in the former Elma Township tested positive for the disease last November. It was also found in a calf and a skunk in the Ellice area south of Milverton.
Rabies was also found last month in a skunk in nearby Huron County, near Blyth.
Public health authorities believe the calf likely contracted the virus by coming into contact with a wild animal that was already carrying rabies.
The health unit says that anyone whose pets of livestock have had contact with a wild animal should contact a veterinarian.
As of Nov. 30, there had been 275 confirmed cases of rabies in Ontario, with the vast majority being in Hamilton and its surrounding area.
