A multi-state outbreak of Salmonella was first detected in Clark County, Ohio. There had been two hospitalizations following consumption of raw milk and raw milk products produced by Young's Dairy, a dairy that had been in existence for many years. Young's Dairy had been the only dairy legally allowed to sell and serve raw milk in Ohio as dairies that had been selling raw milk since before 1967 were allowed to continue to sell raw milk products. From November 30, 2002, to February 18, 2003, 62 cases with indistinguishable pulse-field gel electrophoresis DNA fingerprints were detected. A case-control study was done to determine the specific food vehicle. The results showed that only raw milk was associated with illness. A matching strain of Salmonella Typhimurium was isolated from three raw milk samples. Upon inspection, the dairy was found to have sanitation issues. As a result of this outbreak, the dairy stopped selling raw milk products which thus ended raw milk sales in the state of Ohio.