In Harrisburg, the city water system caused a lot of trouble. Water throughout the city was unfiltered and had damaging effects. One of the most dangerous threats to the city was the spread of typhoid. Bacterial infection spread throughout the water, causing Typhoid Fever - an untreatable, fatal illness. Vance McCormick ran for mayor in 1902 on what he called the "Anti-Typhoid Ticket." One of McCormick's goals for his time in office was to create a treatment system for the water of Harrisburg in order to stop the spread of typhoid. Throughout his time in office, McCormick implemented a filtration system for the city and helped end the spread of typhoid throughout Harrisburg.