The fifty state health departments now report 29,920 cases of cyclosporiasis this season, eighty short of thirty thousand. The federal outbreak grew by half this week, and inspectors are finally inside the plant in Guanajuato.

A tip of the pen, because a good deal of the below is not my reporting. CNN’s investigation — Kyung Lah reported it, with Brenda Goodman’s earlier work on the traceback and the false positive, and Katherine Dillinger contributing — produced the inspection history that makes the timeline legible. Rachel Roubein, Lena H. Sun and Caitlin Gilbert at the Washington Post put the interval itself in a headline this week, which is the framing I have borrowed here. CBS News independently reported the seven-year gap. Reuters has carried the Mexican announcements throughout, Sarah Morland on the negative results and Siddhi Mahatole, Mariam Sunny and Mrinalika Roy on the Michigan counts out of Bengaluru. Coral Beach at Food Safety News has tracked the company’s statements. Food Safety Magazine had the inspection announcement first. And Phyllis Entis at eFoodAlert remains the only other person who went through the recall file line by line.

Two other things happened this week and they are being reported as though they happened together. They did not. Mexico’s Secretariat of Health announced that lettuce and water samples from the Taylor Farms de México plant in Doctor Mora, Guanajuato tested negative for Cyclospora cayetanensis. And FDA announced it had begun an onsite inspection and sampling at that same plant. The first happened in July. The second happened on August 13. Three and a half weeks separate them, and the gap is the story.

Take the Mexican findings first, because they are being read as an exoneration and they cannot carry that weight. Cofepris inspected the facility from July 18 to July 20, accompanied by epidemiologists from the Directorate General of Epidemiology and food safety specialists from Senasica. Its National Reference Laboratory and the Guanajuato State Public Health Laboratory ran real-time PCR on ten samples of raw materials and finished products. All ten were negative. Water samples were negative for fecal coliforms and within national physicochemical standards. The epidemiologists looked at worker health and found no diarrheal illness requiring intervention. I have no reason to doubt any of that. I doubt what people are making of it.

The dates answer most of it. Those samples were taken one to three days after the July 17 recall, and roughly four weeks after the median patient in this outbreak got sick. The lettuce that made people sick was cut and packed from late June through the middle of July. You cannot sample a plant on July 18 and learn what was on the leaves that left it in June. A negative result in the third week of July is a fact about the third week of July.

The fecal coliform result deserves its own paragraph, because it is the exact mistake I have been writing about all summer and a national government just made it in an official release. FDA says in its own voice that traditional fecal-indicator testing — generic E. coli, fecal coliforms — will not identify this parasite. Reporting clean coliforms as reassurance about Cyclospora is like testing a swimming pool for chlorine and announcing there are no sharks. Every water-quality standard in the produce industry is built on indicator bacteria, and the organism at the center of this outbreak is invisible to all of them. Ten samples is also a very small number for a contaminant that is sporadic and patchy and present at low levels when it is present at all.

The worker-health finding is the one I would push on hardest, and gently, because it is also the oldest thread here. Mexican epidemiologists found no diarrheal illness among workers in the third week of July, after the implicated harvest was over. In 2013, when a large cyclosporiasis outbreak was traced to this same Doctor Mora facility, FDA’s environmental assessment found that medical records of harvesting workers showed antidiarrheal medications and the antibiotic combination used to treat cyclosporiasis, though no diagnoses were recorded in the records inspectors saw. That proves nothing standing alone, and I say so every time I raise it. What it establishes is that looking for sick workers in July is not the same as knowing who was sick in June, and that somebody has been down this road at this address before. Senasica added one detail that reads as routine and is not: it invited the supplying growers to certify under Mexico’s Contamination Risk Reduction Systems program. You extend that invitation to people who do not already have it.

Now the American half. FDA’s inspectors reached Doctor Mora on August 13. Taylor Farms’ own information hub says the company temporarily suspended production of all products at that facility as of July 18, 2026. The inspection that began this week began at a plant that had been shut for twenty-six days, sampling lines that had not run since the day after the recall. How long had it been before that? CNN’s investigation established the answer. FDA had not sent an inspector to the Taylor Farms Mexico plant since 2019, and before that not since 2013 — the year of the last outbreak traced to the same address. In the first six months of 2026, five of the company’s more than 160,000 produce shipments from Mexico were physically inspected at the border. Taylor Farms’ Mexican operation is the single largest source of vegetable and prepared salad shipments into this country of any manufacturer in the world.

I want to be careful about where the blame for that lands. Not on the investigators. The people who ran the traceback that found this plant did that work in weeks, with a parasite that has no whole genome sequencing and no positive sample to anchor to, and they got there. The CORE analysts, the state epidemiologists and the traceback teams have been the functioning part of this response. Nobody was assigned to be in Doctor Mora in June. 

What would actually answer the question at this point is not another round of product sampling. The product is gone; the plant is idle and the lots that made people sick expired in July. What would answer it is the environmental record: the water sources and their history, the sanitation infrastructure around the growing fields, the worker medical and absence records from May and June rather than July, and the import history showing what crossed the border in the weeks before anyone was looking. FDA produced an environmental assessment at this facility in 2013 and published it. The 2026 version is the document to wait for.

The season closes on August 31, eighteen days from today. Inspectors are in the plant. The counting does not stop either way.