Cyclospora is a parasite that causes a nasty form of foodborne gastrointestinal illness.<br />Symptoms include diarrhea, vomiting, nausea, fatigue, weight loss, gas, and cramping.<br />Business Insider reports a recent outbreak of cyclosporiasis has been traced to a lettuce supplier.<br />Lettuce from the company first infected McDonald's customers by way of their salads.<br />The US Department of Agriculture has now recalled numerous prepared food products that contain lettuce. <br />
