(NBC News) – The CDC’s planned update marks a significant expansion in the outbreak linked to shredded iceberg lettuce supplied by Taylor Farms.

The outbreak, caused by a microscopic parasite found in human feces, is responsible for hundreds of hospitalizations and two deaths since early May.

The newly linked states — Arkansas, Iowa, Missouri, Nebraska, New Hampshire and North Carolina — join Illinois, Indiana, Kansas, Kentucky, Michigan, Ohio, Oklahoma, Pennsylvania and West Virginia, said the source, who spoke on the condition of anonymity because they were not authorized to speak publicly. (Read More)