The recent surge in Cyclosporiasis cases across the United States has sparked widespread concern, with headlines warning of an 'explosive diarrhea' parasite. This intestinal infection, caused by the Cyclospora cayetanensis parasite, is not new, but the current outbreak is particularly alarming due to its rapid spread and high numbers of cases, especially in Michigan. The question on everyone's mind is: what foods should you avoid to prevent this illness?
The Parasite's Journey
Cyclospora cayetanensis, a microscopic parasite carried in human feces, spreads to people through contaminated food or water. It infects the small intestine, causing severe gastrointestinal upset, with symptoms including sudden, watery, 'explosive' diarrhea that can persist for weeks. While it's usually not life-threatening, treatment with antibiotics is effective.
The parasite's longevity outside the body, lasting one to two weeks, makes person-to-person transmission highly unlikely. However, it can contaminate produce if grown in soil or washed with water contaminated with feces. This is why fresh fruits and vegetables are often implicated in outbreaks.
The Outbreak's Impact
As of July 14, approximately 5,000 cases of cyclosporiasis have been reported in over 30 states, with Michigan bearing the brunt, reporting 3,309 cases and 44 hospitalizations. Other states like Ohio, New York, North Carolina, and Illinois are also seeing surges, but the CDC emphasizes that these clusters may be unrelated.
The true number of infections is likely higher, as many people with diarrhea don't seek medical attention or get tested for cyclospora. This makes tracking the outbreak challenging, as only a small portion of cases can be traced back to a specific food item.
The Food Connection
The cause of the recent outbreaks remains unknown, but health officials have pointed to lettuce or salad greens as a potential source in Michigan. However, they stress that other food items cannot be ruled out. Past outbreaks have been linked to contaminated salad greens, cilantro, basil, and raspberries, but experts caution that food isn't the only culprit.
Water contaminated with feces can also be a source, especially in areas bordering Lake Erie, where cases in Michigan and Ohio are concentrated. This raises the possibility of a waterborne outbreak, but health officials emphasize that exposure to contaminated produce is the main focus of their investigation.
Avoiding the Parasite
Given the uncertainty about the source, it's impossible to know which foods to avoid. However, experts advise against panic. Most fresh fruits and vegetables are not linked to the outbreak and remain safe to consume. Cooking food to at least 158 degrees Fahrenheit is the best way to protect yourself, as freezing can also eliminate cyclospora, though it's not guaranteed.
Washing produce thoroughly can reduce the risk, but it won't eliminate the parasite entirely. State health departments offer precautions for those in affected areas, such as purchasing whole heads of lettuce instead of pre-washed salad greens, washing the inner leaves, and cooking greens to a high temperature.
Expert Advice
Dianna Blau, acting chief of the CDC's Parasitic Disease Branch, highlights the challenge of tracking cyclospora due to its long incubation period and the potential for symptoms to appear up to 10 days after infection. This makes it difficult to identify the source of contamination.
In conclusion, while the recent Cyclosporiasis outbreak is concerning, experts advise against panic. By following simple precautions and staying informed, we can minimize the risk of infection and enjoy the benefits of a healthy diet during the summer produce season.
