TL;DR
More than 1,000 Americans have been diagnosed with cyclospora, a parasitic infection linked to contaminated produce. Health officials are investigating the outbreak, which causes gastrointestinal symptoms.
Health officials have confirmed over 1,000 cases of cyclospora infection across the United States, with investigations ongoing into the source of contamination. The outbreak, which has caused gastrointestinal symptoms including severe diarrhea, affects multiple states and is linked to contaminated produce.
The Centers for Disease Control and Prevention (CDC) announced that more than 1,000 cases of cyclospora, a microscopic parasite causing gastrointestinal illness, have been reported nationwide since the start of the outbreak. The cases are spread across at least 15 states, with most patients reporting symptoms such as diarrhea, stomach cramps, and nausea. The CDC and local health departments are actively investigating potential sources, with preliminary evidence pointing to imported fresh produce, such as berries and leafy greens. For more on outbreak investigations, see our outbreak investigation resources.
Health authorities have advised consumers to wash all fruits and vegetables thoroughly and to seek medical attention if symptoms develop. You can learn more about foodborne outbreaks like this in our Salmonella outbreak coverage. No deaths have been reported so far, but some patients have experienced severe dehydration requiring hospitalization. The outbreak has prompted recalls of certain produce items from suppliers linked to the cases, though the exact contaminated source remains under investigation.
Implications for Food Safety and Public Health
This outbreak highlights ongoing concerns about food safety and the risks posed by imported produce. Cyclospora is resistant to standard washing and often requires specific disinfection methods, making prevention challenging. The incident underscores the importance of strict supply chain controls and consumer awareness to prevent future outbreaks. For the public, it emphasizes the need for vigilance when handling fresh produce and the importance of timely medical diagnosis to manage symptoms effectively.

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Recent Trends in Foodborne Parasite Outbreaks
Cyclospora outbreaks are not new, but the current surge reflects increasing global food imports and complex supply chains. The CDC last reported a significant outbreak in 2018, linked to imported berries. The parasite is transmitted through ingestion of contaminated food or water, often from infected agricultural water sources. Outbreaks tend to peak during warmer months when produce is most widely consumed. Authorities have intensified monitoring and recall efforts in response to this surge, but challenges persist due to the parasite’s resilience and the difficulty in tracing contamination sources.
“We are actively investigating the sources of this outbreak and urge consumers to handle produce carefully. While no deaths have been reported, the number of cases underscores the importance of food safety measures.”
— Dr. Anne Schuchat, CDC senior official

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Unconfirmed Source of Contamination and Future Scope
It is not yet confirmed which specific produce items or suppliers are responsible for the outbreak. Investigations are ongoing, and the CDC has not yet identified a definitive source. The full scope of the outbreak and whether additional cases will be linked remains uncertain.

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Next Steps in Investigation and Public Guidance
Authorities plan to release detailed findings once the source is identified and will continue monitoring for new cases. Consumers are advised to wash produce thoroughly, avoid consuming unwashed fresh berries or leafy greens from uncertain sources, and seek medical attention if symptoms occur. Additional recalls and public advisories are expected as investigations progress.

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Key Questions
What is cyclospora and how is it transmitted?
Cyclospora is a microscopic parasite that causes gastrointestinal illness. It is transmitted through ingestion of contaminated food or water, often from contaminated produce or water sources used in agriculture.
What symptoms should I watch for?
Common symptoms include diarrhea, stomach cramps, nausea, bloating, and fatigue. Symptoms can last for several weeks if untreated.
How can I protect myself from infection?
Wash all fruits and vegetables thoroughly, especially those eaten raw. Avoid consuming produce from untrusted sources or those linked to recent recalls. Practice good hygiene and seek medical advice if symptoms develop.
Are there any treatments for cyclospora infection?
Yes, antibiotics such as trimethoprim-sulfamethoxazole are effective. Medical consultation is essential for proper diagnosis and treatment.
Will there be more outbreaks?
It is uncertain. Authorities are increasing surveillance and testing to prevent further cases, but ongoing importation of produce poses a continual risk.
Source: google-trends