How a Parasite Outbreak Slipped Past America's Food Safety Defenses

When Cyclospora struck again this summer, sickening more

When Cyclospora struck again this summer, sickening more than 2,000 people across 33 states, federal investigators were left playing a frustrating game of catch-up. The parasite, which hides in fresh produce, had been linked to contaminated cilantro and salads, but identifying the exact farms and distribution points took weeks. By then, the outbreak had already spread widely, forcing health officials to issue broad warnings without pinpointing the culprit.

At the heart of the delay, according to internal documents and interviews, is a stalled regulation from the Trump administration. The rule, proposed in 2016 under the Food Safety Modernization Act, would have required faster traceability for high-risk foods like leafy greens, tomatoes, and herbs. It was designed to create a digital trail from farm to store, allowing regulators to trace contamination in days rather than months. But the Office of Management and Budget, which reviews federal rules, sat on the proposal for over a year, citing concerns about cost and industry burden. When the administration finally released it in early 2018, it was stripped of key provisions that would have mandated a uniform tracking system.

Critics argue this is just one symptom of a broader erosion of food safety oversight. Under the current leadership at the FDA, enforcement actions have declined, and the agency has delayed several other safety rules, including new standards for imported produce. Meanwhile, a growing share of America's fresh food comes from overseas, where farming practices vary widely. Cyclospora, for instance, is endemic in certain regions of Mexico and Central America, and contaminated cilantro from these areas has triggered multiple outbreaks since 2013. The FDA's limited inspection capacity means many shipments bypass scrutiny entirely, relying on private importers to self-certify.

The human cost of these systemic gaps is

The human cost of these systemic gaps is measurable: thousands of illnesses, many leading to severe gastrointestinal distress, dehydration, and hospitalizations. For vulnerable populations—the elderly, pregnant women, and children—the parasite can be particularly dangerous. Yet the public often hears little about the regulatory failures that allow such outbreaks to recur. Instead, the narrative focuses on consumer hygiene, as if washing lettuce or avoiding certain brands could compensate for a broken safety net.

Some former FDA officials and food safety advocates now call for a fundamental rethink. They propose a centralized traceability database, mandatory testing for high-risk imports, and a rapid response fund to support growers when contamination is suspected. But these changes face stiff resistance from industry lobbyists and a political climate that prioritizes deregulation. As one former FDA deputy commissioner put it, "We're playing whack-a-mole with a parasite that has learned to exploit every loophole we leave open." Until that changes, Cyclospora will likely keep finding its way onto American tables—and into emergency rooms.