Expert on why the cyclospora parasite has been so hard to track

Julie Swann, head of the department of industrial and systems engineering at North Carolina State University, joins "The Daily Report" to discuss the tracking and tracing underway as the U.S.' cyclosporiasis outbreak surpasses 4,000 cases.

Julie Swann, head of the department of industrial and systems engineering at North Carolina State University, joins "The Daily Report" to discuss the tracking and tracing underway as the U.S.' cyclosporiasis outbreak surpasses 4,000 cases.