A total of 224 persons have been infected with the outbreak strain of Salmonella Typhimurium in 34 states, up from 146. According to the U.S. Centers for Disease Control:

• 26% of ill persons have been hospitalized, and no deaths have been reported;

• 62% of ill persons are children 10 years of age or younger;

• epidemiologic, laboratory, and traceback findings have linked this outbreak of human Salmonella Typhimurium infections to contact with chicks, ducklings, and other live baby poultry purchased from multiple feed stores and sourced from multiple mail-order hatcheries;

• investigations are ongoing to determine the source of the live poultry linked to this outbreak;

• this outbreak of human Salmonella Typhimurium infections is not related to the current outbreak of human Salmonella Infantis, Lille, Newport, and Mbandaka infections linked to live poultry; and,

• among the persons who reported the date they became ill, illnesses began between and March 4, 2013 and May 20, 2013.