In June 2010, the Illinois Department of Public Health (IDPH) announced that it was investigating an outbreak of Salmonella Hvittingfoss illnesses in approximately 14 counties across the state of Illinois. The outbreak grew substantially after the initial IDPH announcement, ultimately including 109 confirmed cases and 90+ more probable cases. As of June 21, 2010, IDPH counted 97 confirmed victims in the outbreak from 28 counties across the state of Illinois. The counties reporting confirmed illnesses in the Subway outbreak were: 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.
Very likely, the actual number of victims of the Subway Salmonella outbreak was much larger than 109 confirmed and 90 probable. The Centers for Disease Control and Prevention estimates that in Salmonella outbreaks the actual number of victims is as many as 38 times the number of reported, confirmed cases.
At least 25 cases in the outbreak were hospitalized.
Marler Clark's Salmonella attorneys represented several Salmonella outbreak victims in lawsuits or legal claims against Subway. All cases were resolved.