As of May 13, 2008, state and city health departments from 15 states have identified 28 ill persons infected with same genetic fingerprint of Salmonella Agona. Ill persons with the outbreak strain have been identified from Colorado (1), Delaware (2), Illinois (1), Maine (4), Massachusetts (2), Michigan (1), Minnesota (1), North Dakota (1), New Hampshire (2), New Jersey (5), New York (3), Ohio (1), Pennsylvania (2), Rhode Island (1), and Vermont (1). Onset dates, which are known for 23 patients, ranged from January 1 to April 10, 2008. Patients’ ages ranged from 4 months to 95 years with a median age of 65 years. Eight hospitalizations and no deaths have been reported.