Investigation of Multidrug-Resistant <EMPH TYPE="ITAL">Salmonella</EMPH> Serotype Typhimurium DT104 Infections Linked to Raw-Milk Cheese in Washington State

Multidrug-resistant Salmonella Typhimurium DT104 has recently emerged as a cause of human and animal illness in Europe and North America. In early 1997, health officials in Yakima County, Washington, noted a 5-fold increase in salmonellosis among the county's Hispanic population.To characterize bacterial strains and identify risk factors for infection with Salmonella Typhimurium in Yakima County.Laboratory, case-control, and environmental...