You may never have heard of the illness “Shigellosis,” but it’s hitting Kansas City hard this year. Kansas City health officials are concerned about what they call an outbreak of the illness. Tiffany Wilkinson with the Kansas City Health Department says it’s up more than 300% over last year. Shigellosis is spread through human waste and is more common to children because of poor hygiene. The main symptom of the illness is diarrhea.