"The mystery over the cyclospora outbreak has deepened. Cyclospora is a dangerous parasite that causes stomach illness. The Centers for Disease Control and Prevention said Thursday there are now 397 cases in 16 states, but no one has yet identified the source."
"But this week, health investigators in Nebraska said the outbreak there originated from prepackaged salad mix that came through "national distribution channels." Now, the CDC and the FDA are looking for the exact source of that contamination.
Iowa officials also said a prepackaged salad mix is to blame, but neither state is naming the company or companies involved. Both states cite laws prohibiting investigators from naming brands or companies if it's believed the contaminated product is no longer a public health threat. Officials believe the contaminated food is likely out of the food supply."