Oswego, N.Y. ― An Oswego County election worker was brought to a hospital after coming into contact with an ‘unknown substance’ on a piece of mail Wednesday, police said.Deputies were called to the Board of Elections, 74 Bunner St. in the city of Oswego, just before 3 p.m., according to Lt. An drew J. Bucher, an Oswego County Sheriff’s Office spokesperson. ...read more read less