As of 9:00 AM EDT on June 25, 2010, a total of 37 individuals infected with a matching strain of Salmonella Chester have been reported from 18 states since April 11, 2010. The number of ill people identified in each state with this strain is as follows: AK (1), CA (5), CO (2), GA (7), IL (1), KY (1), MA (2), MN (2), MO (1), NC (1), OK (1), OR (2), SC (2), TN (1), TX (1), UT (2), VA (4), and WA (1). Among those for whom information is available about when symptoms started, illnesses began between April 5, 2010 and June 3, 2010. Case-patients range in age from <1 to 88 years old, and the median age is 36 years. Fifty-five percent of patients are female. Among the 19 patients with available hospitalization information, 7 (37%) were hospitalized. No deaths have been reported.