As of yesterday the number of confirmed cases of Salmonella serotype Hvittingfoss stands at 97. Illnesses have reported eating at Subway restaurants located in 28 counties — Bureau, Cass, Champaign, Christian, Coles, Dekalb, DeWitt, Ford, Fulton, Henry, Knox, LaSalle, Livingston, Macon, Marshall, McLean, Moultrie, Ogle, Peoria, Rock Island, Sangamon, Schuyler, Shelby, Tazewell, Vermilion, Warren, Will and Winnebago.