On May 21, 2014 an outbreak of E. coli O121 linked to consumption of clover sprouts was announced by health officials in Washington and Idaho. On August 1, 2014 the CDC declared the outbreak over. In total 19 patients had been confirmed with E. coli O121. Patients resided in California, Idaho, Michigan, Montana, Utah and Washington. Among those persons with information, seven (44%) of 16 were hospitalized. No ill persons developed HUS, and no deaths were reported. Epidemiologic and traceback investigations conducted by local, state, and federal officials indicated that contaminated raw clover sprouts produced by Evergreen Fresh Sprouts, LLC of Idaho was the most likely source of the outbreak. Sprouts were eaten in sandwiches at several food establishments including Jimmy John's Gourmet Sandwich locations in King and Spokane counties as well as two Pita Pit locations in Spokane County. In Kootenai County case patients had eaten raw clover sprouts at Jimmy John's and Daanen's Deli. The producer also distributed sprouts to other restaurants and retail grocery stores in the northwest.