As of June 28, 52 persons infected with Salmonella Wandsworth have been reported to CDC from 17 states: California, Colorado, Connecticut, Georgia, Indiana, Massachusetts, Minnesota, New Hampshire, New Jersey, New York, Oregon, Pennsylvania, Tennessee, Texas, Vermont, Washington, Wisconsin.

California (seven cases), Colorado (five cases), Connecticut (one case), Georgia (one case), Indiana (one case), Massachusetts (three cases), Minnesota (two cases), New Hampshire (two cases), New Jersey (two cases), New York (13 cases), Oregon (one case), Pennsylvania (three cases), Tennessee (one), Texas (one), Vermont (three cases), Washington (four cases), and Wisconsin (two cases).

Among the patients for whom clinical information is available, 77% developed bloody diarrhea and 11% were hospitalized. No deaths have been attributed to this infection. Onset dates, which are known for 49 patients, ranged from March 4, 2007 to June 11, 2007.