LANSING (AP) — State officials say they’ve discovered a second cattle herd in southwestern Michigan infected with bovine tuberculosis.

The Michigan Department of Agriculture and Rural Development announced last week the potentially fatal disease had shown up on a farm in Ottawa County. On Tuesday, the department said the sick cattle had also spent time at a farm in Kalamazoo County, where an investigation found two other infected cows.

The original carriers of the illness came from Franklin County, Ind., where two beef herds and a whitetail deer tested positive in 2016.