Federal investigators added Georgia, Tennessee, and Texas to the multistate Cyclospora outbreak linked to recalled iceberg lettuce, lifting the confirmed national total to 11,458 illnesses across 20 states. The update, posted August 27, also raised the hospitalization count to at least 495. Two deaths, both reported earlier in Michigan, remain unchanged, and the CDC outbreak page still shows an open investigation.
The practical meaning has shifted since the summer. The implicated product is long past its best-by dates and is no longer in stores or restaurants, so this is not a shopping alert. It is a testing alert. Another 528 illnesses were added in a single week, and most of them began before the July 17 recall, which means the number is still catching up to infections that happened weeks ago.
For households in the three newly added states, the question is narrow and answerable. Anyone who has had watery diarrhea that keeps returning since early summer, and who has not been tested specifically for this parasite, may still be an uncounted case.
Three States Added and 528 Illnesses in a Single Week
According to the CDC outbreak investigation page, the outbreak now spans Arkansas, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Massachusetts, Maine, Michigan, Missouri, Nebraska, New Hampshire, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Texas, and West Virginia.
The prior federal update, issued August 20, listed 10,930 illnesses in 17 states and at least 454 hospitalizations. Epidemiologic and traceback work continues to point to iceberg lettuce processed by Taylor Farms de Mexico, a central Mexico operation whose product reached retailers and restaurants, including Taco Bell locations.
Illness onsets began June 14 and have continued through August 15, according to the FDA outbreak investigation page. The federal count also includes people who traveled to one of the 20 states but live elsewhere, which is one reason state dashboards and the federal tally do not match. The agency maintains a separate map of where people got sick that reflects the same reporting period.
State figures can look very different. Michigan's own outbreak dashboard listed 14,510 cases and 356 reported hospitalizations as of August 27, because the state counts all cyclosporiasis reported during its investigation period rather than only laboratory-confirmed illnesses tied to this specific product.
Recalled Product Is Gone, but the Count Keeps Moving
Cyclospora cases accumulate slowly because of the parasite, not because of any failure of reporting. Symptoms usually appear about a week after exposure, with a range of two days to two weeks or more. Illness can then persist for weeks without treatment, and the CDC says it can take about six weeks to determine whether a sick person belongs to an outbreak.
That lag is why an outbreak tied to lettuce recalled in mid-July is still adding hundreds of cases in late August. It is also why the arrival of Georgia, Tennessee, and Texas on the state list does not signal fresh contaminated product circulating in Atlanta, Nashville, or Dallas. The recalled lettuce carried best-by dates that have passed.
CDC has been direct about the limits of its own figure, stating that the outbreak "may not be limited to the states with known illnesses." Laboratory work supports the single-source conclusion. Genotyping on samples from patients shows the parasites are genetically related, which is separate from whole genome sequencing and targets specific markers to group related parasites.
Routine Stool Tests Do Not Look for This Parasite
The single most useful fact for readers is a laboratory detail. Cyclospora is not included in every routine stool panel, and CDC advises clinicians to test for it specifically in patients with compatible symptoms.
That gap falls hardest on people without a regular clinician, people who assumed a summer stomach illness would resolve on its own, and anyone whose symptoms eased and then returned. Recurring watery diarrhea, fatigue, cramping, and loss of appetite that began in June, July, or early August are the pattern worth raising with a provider.
Adults with weakened immune systems face the most severe and prolonged illness, and older adults and people with chronic conditions are more likely to become dehydrated enough to need hospital care. Michigan health officials said both people who died had "significant underlying health conditions" that may have been affected by the illness and dehydration. Children and healthy adults generally recover, though recovery can take a month or longer without treatment.
Cyclospora does not spread from person to person, so a household case does not require isolating a sick family member. Staying well hydrated is the standard supportive step, and a clinician can determine whether prescription treatment is appropriate.
Cost, Access, and the Next Federal Update
Testing and treatment costs vary. People without insurance can contact their county or state health department, many of which arrange low-cost or no-cost evaluations during an active outbreak investigation, and community health centers offer sliding-scale visits. Patients who were sick earlier in the summer and never tested should ask whether testing is still informative in their case rather than assuming the window has closed.
CDC has revised this investigation weekly since early August, so another update is expected in the coming week. The FDA investigation of the central Mexico growing operation remains open, and congressional requests for records on the recall timing are unresolved. Nothing in those inquiries has been established as fact, and the company has denied wrongdoing.
For now, the confirmed picture is this. Twenty states, 11,458 laboratory confirmed illnesses, at least 495 hospitalizations, and two deaths, with data through August 27. The product is off the shelves. The counting is not finished, and the most reasonable action for anyone with lingering summer gastrointestinal symptoms is to ask a clinician directly about Cyclospora testing rather than waiting for the next number to appear.
Key Questions Answered
Which three states were just added? Georgia, Tennessee, and Texas were added in the federal update posted August 27, bringing the outbreak to 20 states.
Is the contaminated lettuce still being sold? No. Taylor Farms de Mexico recalled all iceberg lettuce sourced from central Mexico on July 17, and the best-by dates on the recalled product have passed.
Why are cases still rising if the product is gone? Symptoms usually start about a week after exposure, illness can last weeks, and the CDC says it can take roughly six weeks to link a confirmed case to an outbreak. Most newly reported illnesses began before the recall.
What are the symptoms? Watery diarrhea that often comes and goes, fatigue, cramping, and loss of appetite. Symptoms typically begin about a week after exposure and can last a month or longer untreated.
Do I need to ask for a specific test? Often, yes. Cyclospora is not part of every routine stool panel, and the CDC advises clinicians to order testing for it in patients with compatible symptoms.
Who is at greatest risk of severe illness? People with weakened immune systems, older adults, and people with chronic conditions. Michigan officials said both people who died had significant underlying health conditions.
Why do state numbers differ from the federal count? States may include probable cases and update on different schedules, while the CDC and FDA report only laboratory-confirmed illnesses linked to this product.
