The US Centers for Disease Control and Prevention are warning people about Del Monte Fresh Produce Vegetable Trays, which are responsible for a multistate outbreak of Cyclospora cayetanensis, a "single-celled parasite that causes an intestinal infection."
From the FDA:
Most people infected with Cyclospora develop diarrhea, with frequent, sometimes explosive, bowel movements. Other common symptoms include loss of appetite, weight loss, stomach cramps/pain, bloating, increased gas, nausea, and fatigue. Vomiting, body aches, headache, fever, and other flu-like symptoms may be noted. Some people who are infected with Cyclospora do not have any symptoms. If not treated, the illness may last from a few days to a month or longer. Symptoms may seem to go away and then return one or more times (relapse).
Washing the vegetables is not enough to prevent getting sick from the parasite.
Consumers who have purchased recalled Del Monte 6oz, 12oz and 28oz vegetable trays from IA, IL, MN, and WI should discard the product immediately. Cooking or heating produce at high temperature will kill most pathogens, including parasites such as Cyclospora, and thus significantly reduces the likelihood of illness. This holds true for any produce that may contain Cyclospora. Washing or cleaning processes may not be sufficient to eliminate the pathogen.