Cyclosporiasis cases are rising across the United States, and food safety experts are urging consumers to exercise caution with specific produce items linked to the parasitic infection.
Cyclospora cayetanensis, a single-celled parasite, spreads through contaminated water and typically attaches to fresh produce grown in affected regions. The CDC tracks cyclosporiasis outbreaks annually, with cases spiking during summer and early fall when imported fruits and vegetables flood American markets.
Cilantro, raspberries, basil, and lettuce rank among the highest-risk foods during outbreaks. These delicate herbs and berries absorb water during growth and washing, creating ideal conditions for parasite survival. Cucumbers, melons, and other produce with porous skin also warrant heightened scrutiny. The parasite poses particular danger because it survives standard washing and cannot be eliminated by peeling alone.
Symptoms of cyclosporiasis include watery diarrhea, loss of appetite, abdominal cramps, nausea, and fatigue. Illness typically emerges seven to ten days after consuming contaminated food. While the infection rarely proves fatal, immunocompromised individuals face serious complications.
The CDC recommends several protective measures. Purchase produce from reputable sources with strong traceability systems. When possible, buy domestically grown items during peak outbreak seasons. Thoroughly wash all fresh produce under running water, though washing cilantro and basil requires extra care since water can trap parasites in crevices. Cooking produce to 160 degrees Fahrenheit kills the parasite reliably.
Restaurants and food distributors have implemented enhanced screening protocols for imported cilantro and basil, the vegetables most frequently implicated in recent outbreaks. Some chains have temporarily sourced these herbs exclusively from domestic suppliers to minimize risk.
For consumers,