A bagged salad mix is being investigated as a source of the Cyclospora stomach bug outbreak that has caused hundreds of cases of diarrhea and vomiting.
According to federal officials as of Monday, 372 people have developed a Cyclospora infection, or Cyclosporiasis.
Authorities found cases in at least 16 states including Missouri.
Iowa has the most cases with 143 reported by health officials.
Investigators determined that about 80% of the cases had been exposed to this same type of prepackaged salad mix.
Health officials have not revealed the brand or manufacturer of the mix, but have said it contains iceberg and romaine lettuce, carrots and red cabbage.
MU Health Care Dr. Michael Cooperstock said itâ??s hard to tell if you have a Cyclospora infection.
Cooperstock said, â??It may be a week or two of an incubation period before the symptoms show up. That would perhaps be one clue. If a couple of people who ate the same meal a week or two ago both get the symptoms at the same time, that would be suspicious for some source from the food.â??
Federal health officials have yet to conclude if this bagged salad is responsible for the nationwide outbreak.