"Arkansas, Iowa, Missouri, Nebraska, New Hampshire and North Carolina have joined the outbreak tied to lettuce from Mexico, said a person familiar with the investigation." "The Centers for Disease Control and Prevention is expanding the largest known cyclosporiasis outbreak to 15 states, adding six states where illnesses have been traced to shredded iceberg lettuce sourced from central Mexico, according to three individuals familiar with the investigation. Missouri, which is reporting 1,095 cases, is one of the states being added, according to a state health department spokesperson. The other states are Arkansas, Iowa, Nebraska, New Hampshire and North Carolina, according to a fourth person familiar with the investigation. The investigation is continuing to evolve, and the number of states could change."