As of July 15, the CDC has confirmed 1,645 laboratory-verified cases of cyclosporiasis across 34 states, with 141 hospitalizations and an estimated 5,100 additional illnesses still under review. Michigan alone has reported 3,762 cases and 44 hospitalizations. The previous national record was roughly 4,700 cases — set across all of 2019. We blew past that before the summer's half over.
And the FDA still hasn't confirmed what food is causing it.
Cyclosporiasis is caused by Cyclospora cayetanensis, a microscopic parasite that spreads through fecally contaminated food or water. It doesn't respond to washing. Freezing doesn't reliably kill it. Once you eat it, symptoms — watery diarrhea, cramping, appetite loss, fatigue, weight loss — show up about a week later and can persist for over a month without treatment. The only effective treatment is the antibiotic trimethoprim-sulfamethoxazole, and here's the kicker: standard stool tests don't even detect it. You need a specific lab test most doctors won't order unless they already suspect Cyclospora.
So you can be sick for weeks and never get the right diagnosis.
Michigan has become the epicenter. State health officials there identified bagged salad and lettuce as the likely source, which prompted Taco Bell to pull fresh produce from its supply chain as a precaution. The Food Poisoning Bulletin reports that Taylor Farms de Mexico has been named in connection with the outbreak and is under investigation, though the FDA has not officially confirmed a single source as of mid-July.
That timeline deserves attention. The first cases showed symptom onset around June 22. The FDA added a new Cyclospora cluster to its CORE outbreak table in mid-June. By late June, 145 people were sick across 17 states. By early July, Michigan alone had 572 cases. By July 13, the confirmed national count hit 1,645 — and the true total, counting unconfirmed reports, is estimated near 7,000.
Four weeks of exponential growth. No confirmed source. No recall.
The CDC's July 14 briefing acknowledged that "multiple clusters of cyclosporiasis are being investigated across the United States" and that cases have been rising since May 2026. Public health officials are interviewing sick individuals about foods consumed in the two weeks before illness. That's the investigation: asking people what they ate two weeks ago and hoping someone remembers.
Meanwhile, the states reporting the highest case counts — Michigan, New York, Ohio, Texas, Illinois, and North Carolina — span the country. This isn't a regional contamination event. Whatever's in the supply chain has national reach, which points directly at a large-scale distributor or importer.
The FDA's own food safety mandate exists precisely for this scenario. The Food Safety Modernization Act gave the agency expanded authority over imported produce, including preventive controls and supply chain verification. The entire point was to catch contamination before it hits grocery store shelves, not after thousands of Americans are already doubled over.
Yet here we are, a month into an outbreak that shattered the all-time record, and the agency responsible for keeping parasites out of your lettuce is still conducting interviews.
The government that wants to regulate your gas stove, your dishwasher, and your ceiling fan can't tell you whether it's safe to eat a salad in July. The agency with a $7 billion budget and 18,000 employees needs four more weeks to figure out which bag of lettuce has fecal parasites in it.
That's not a resource problem. That's a competence problem.
