A pre-packaged salad mix linked to Cyclospora, a severe stomach virus responsible for sickening over 200 people in Iowa and Nebraska, has been traced to a Taylor Farms de Mexico, according to Reuters. 

According to the Food and Drug Administration, salads produced by Taylor Farms de Mexico and sold at U.S. restaurants appears to be the source of the outbreak. Food restaurants including Olive Garden and Red Lobster have both been linked to the outbreak. Both chains served the salad, but have reportedly not used the farm's salad in a month. The two chains are own by Darren restaurants.

According to the CBSnews, Darren issued a statment saying:

"Nothing we have seen prior to this announcement gave us any reason to be concerned about the products we've received from this supplier. Iowa and Nebraska health authorities have said this is not an ongoing outbreak and the product is no longer in the food supply in those states. The health and safety of our guest is out top priority, and it is completely safe to eat in our restaurants,"

According to the company's website, Taylor Farms has 11 processing plants in the United States and one in San Miguel, Mexico. 

"The Mexico facility is state of the art and has an exceptional food safety record including an exceptional facility audit in 2011 by the FDA," Taylor Farms said in an official statement. "The company is also working with the FDA on an environmental faculty assessment of Taylor Farms de Mexico and is cooperating with the FDA in their ongoing investigation."

According to previous reports, health officials in both states zeroed in on a particular pre-packaged salad mix that contained romaine lettuce, red cabbage and carrots. 

According to CBS News, Cyclospora infections have been reported in at least 16 states and have sickened at least 400 people as of Aug. 1. The Health Department reported illnesses in Texas, Wisconsin, Arkansas, Connecticut, Florida, Georgia, Illinois, Kansas, Minnesota, Missouri, New Jersey, New York and Ohio. Louisiana became the latest state added to the list. There have reported two cases. There have are no reports on whether the other states are a part of the same outbreak. The FDA said they've increased cases of cyclospora in other states. 

Cyclospora is a rare parasite spread by feces in contaminated food or water. It can cause lingering diarrhea and other flu-like symptoms and can be treated with common antibiotics.

The Iowa and Nebraska health departments had not disclosed the brand of the salad. According to CBS News chief medical correspondent Dr. Jon LaPool, both states cited laws preventing investigators from naming brands or companies if the product is no longer believed to pose a public health threat.