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2026 Cyclospora Lettuce Recall: 4 Steps to Check

Infographic titled 'Is Your Lettuce Part of the 2026 Cyclospora Recall?' showing Marketside (Walmart) and Taco Bell as the recalled/affected sources (via Taylor Farms de Mexico), with 4 steps: check the Marketside brand, find the lot code and date, compare with official CDC and FDA recall notices, and note that rinsing isn't enough. Includes outbreak scale (15 states, 6,358 cases) and lists higher-risk groups: infants, older adults, and people with weakened immune systems.

[Key Takeaways] 

  • A multistate cyclosporiasis outbreak linked to recalled iceberg lettuce has sickened at least 6,358 people across 15 states as of the most recent CDC update, including at least 278 hospitalizations and 2 deaths.
  • The recalled lettuce — supplied by Taylor Farms de Mexico, sold under Walmart's Marketside brand, and served as shredded lettuce at some Taco Bell locations — was distributed to at least 27 states.
  • Cyclospora cayetanensis, the parasite responsible for the illness, spreads mainly through contaminated fresh produce or water rather than through casual contact between people.
  • Common symptoms include watery diarrhea, stomach cramping, bloating, fatigue, and low-grade fever; untreated infections may last anywhere from a few days to a month or longer and can recur after seeming to improve.
  • Checking current recall notices and following basic food safety steps may help lower your risk of infection.
This article is intended for general informational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Please consult a licensed healthcare professional regarding your own health situation.

It is written in the hope that it can be of even a little help to many readers.

Overview

Public health officials and grocery suppliers across the country are responding to a growing outbreak of cyclosporiasis, a digestive illness caused by a microscopic parasite, that has been linked to a recall of iceberg lettuce sold under Walmart's Marketside brand and served as shredded lettuce at some Taco Bell locations. As of the most recent CDC update, at least 6,358 illnesses have been reported. If recent headlines about lettuce being pulled from store shelves and restaurant supply chains have caught your attention, this guide explains what cyclosporiasis is, what symptoms to watch for, how to check whether a product you bought has been recalled, and practical steps that may help lower your risk.

What's Happening: The 2026 Cyclosporiasis Outbreak

In the summer of 2026, health officials began investigating a multistate outbreak of cyclosporiasis, and investigators traced the source to iceberg lettuce supplied by Taylor Farms de Mexico — sold under Walmart's Marketside brand and served as shredded lettuce at some Taco Bell locations. As of the most recent CDC update, at least 6,358 people across 15 states have been confirmed infected, including at least 278 hospitalizations and 2 deaths, both in Michigan, in people with underlying health conditions.[1] The recalled lettuce itself was distributed more broadly — to at least 27 states — reaching retailers and restaurant suppliers beyond where illnesses have so far been confirmed,[2] which is why the recall footprint is wider than the number of confirmed illnesses; these are two different figures describing two different things.

[1] CDC, "Investigation Update: Cyclospora Outbreak, July 2026" (2026); CDC Newsroom, "Shredded Iceberg Lettuce Served at Taco Bell Locations Is Source of Cyclosporiasis Infections" (2026)
[2] FDA, "Investigation of 15-State Outbreak of Cyclospora Illnesses: Iceberg Lettuce" (2026)

Because case counts and the investigation are still being updated as it continues, treat the specific figures above as accurate as of this article's last-updated date and check official recall and public health notices directly for the latest information (see "Is Your Lettuce on the Recall List?" below).

What Is Cyclosporiasis?

The Parasite Behind the Illness

Cyclosporiasis is an intestinal illness caused by Cyclospora cayetanensis, a single-celled parasite too small to see without a microscope.[1] Unlike many foodborne bacteria, this parasite has a life cycle that requires time in the environment before it becomes capable of infecting a new host, which is part of why contaminated fresh produce and water — rather than direct contact between people — are the typical routes of transmission.[1]

[1] Dubey et al., Microorganisms (2022); Almeria et al., Microorganisms (2019)

How It Spreads

People typically become infected by consuming food or water contaminated with feces containing the parasite.[1] Fresh produce eaten raw, such as lettuce, herbs, and berries, has been linked to past U.S. outbreaks, particularly items imported from regions where the parasite is more common in the environment. Cyclospora is not considered to spread directly from one person to another the way a cold or flu virus does, because the parasite needs to mature outside the body before it can cause a new infection.[1]

[1] Dubey et al., Microorganisms (2022); Almeria et al., Microorganisms (2019)

Recognizing the Symptoms

The most common symptom of cyclosporiasis is watery diarrhea, often accompanied by loss of appetite, weight loss, bloating, increased gas, stomach cramps, nausea, and fatigue. Some people also develop a low-grade fever.[1] Symptoms typically begin about a week after exposure, though this can vary, and if the infection isn't treated, symptoms may last anywhere from a few days to a month or longer, and can return after seeming to improve.[1]

[1] CDC, "Symptoms of Cyclosporiasis"; Mathison & Pritt, Microorganisms (2021)

Not everyone infected with the parasite develops symptoms, and severity can range widely from mild digestive upset to prolonged, debilitating illness.[1]

[1] CDC, "Symptoms of Cyclosporiasis"; Mathison & Pritt, Microorganisms (2021)

※ If you develop bloody diarrhea, signs of significant dehydration (such as very dark urine, dizziness, or an inability to keep fluids down), or a high fever, seek medical care promptly rather than waiting to see if symptoms resolve on their own.

Is Your Lettuce on the Recall List?

If you're concerned about a product you already purchased — or a meal you recently ate — the most reliable step is to check official recall notices rather than relying on general news coverage alone.

  • Check the product packaging. This recall centers on iceberg lettuce supplied by Taylor Farms de Mexico. At Walmart, the recalled product was sold under the Marketside brand — specifically Marketside Iceberg Salad (12-oz or 24-oz) and Marketside Shredded Lettuce (8-oz or 16-oz), with "Best if Used By" dates between July 18 and August 3, 2026.[1] Look for that brand name and note any lot codes or dates printed on the bag or box.
  • If you ate at Taco Bell recently, you may have been exposed even without buying anything yourself. Shredded iceberg lettuce from this same recalled supply was served as an ingredient at some Taco Bell locations,[2] which is part of why this outbreak has been linked to both grocery purchases and restaurant meals — not just one or the other.
  • Compare against the official recall notice. CDC's outbreak page and FDA's recall investigation page list the specific products, package types, and dates involved, and are updated as the investigation continues — check these directly rather than relying on general news coverage alone, since details can change. Grocery retailers and restaurant chains often post their own in-store or online notices for affected items as well.
  • When in doubt, don't eat it. If you can't confirm whether a product is included in the recall, it's reasonable to discard it or return it to the store rather than risk exposure.
  • Washing may not be enough. Unlike some bacteria, Cyclospora oocysts can be resistant to routine produce washing and standard chlorine disinfection,[3] so recalled products should not be eaten even after rinsing.

[1] FDA, "Investigation of 15-State Outbreak of Cyclospora Illnesses: Iceberg Lettuce" (2026)
[2] CDC Newsroom, "Shredded Iceberg Lettuce Served at Taco Bell Locations Is Source of Cyclosporiasis Infections" (2026)
[3] Sathyanarayanan & Ortega, Journal of Parasitology (2006); CDC, "Preventing Cyclosporiasis"

Reducing Your Risk: Prevention Tips

While no single step eliminates risk entirely, a few general food safety practices may help lower your chances of infection during an active outbreak:

  • Stay current on recall notices. Regularly check recall pages for fresh produce, especially if you buy pre-washed or bagged salad greens often, or eat at restaurants that use fresh lettuce and produce.
  • Practice good hand hygiene. Washing your hands with soap and water before eating and after using the bathroom or changing diapers may help reduce the spread of many gastrointestinal illnesses in general.[1]
  • Be cautious with raw produce during outbreaks. Cooking produce, when practical, inactivates the parasite in a way that washing alone may not.[2]
  • Use safe water sources while traveling. If you're in an area with a known Cyclospora risk, sticking to bottled or treated water may help.[3]

[1] Wolf et al., The Lancet (2022)
[2] Sathyanarayanan & Ortega, Journal of Parasitology (2006); CDC, "Preventing Cyclosporiasis"
[3] CDC, "Preventing Cyclosporiasis"

Following official recall guidance remains the most direct way to avoid recalled products specifically; the steps above are general practices that may help reduce risk more broadly.

Treatment and When to See a Doctor

Cyclosporiasis is typically diagnosed through a stool test ordered by a healthcare provider,[1] since its symptoms overlap with many other digestive illnesses. A healthcare provider may prescribe a course of antiparasitic medication after confirming the diagnosis;[2] talk to your healthcare provider about the treatment approach that's appropriate for your situation.

[1] Mathison & Pritt, Microorganisms (2021)
[2] CDC, "Clinical Guidance for Cyclosporiasis"; Mathison & Pritt, Microorganisms (2021)

Most healthy adults recover fully, though recovery can take time, and untreated infections can last anywhere from a few days to a month or longer, with symptoms sometimes returning after they seem to improve.[1] Infants, older adults, and people with weakened immune systems may be at higher risk of more prolonged or severe illness[2] and should talk to a healthcare provider promptly if symptoms develop.

[1] CDC, "Symptoms of Cyclosporiasis"; Mathison & Pritt, Microorganisms (2021)
[2] Mathison & Pritt, Microorganisms (2021); CDC, "Clinical Guidance for Cyclosporiasis"; Ghorbani et al., Canadian Journal of Infectious Diseases & Medical Microbiology (2025)

※ Seek medical attention right away if you experience signs of severe dehydration, persistent vomiting, a fever above 102°F, or diarrhea that does not improve after several days.

This outbreak is still evolving, and guidance may be updated as investigators learn more about its source and scope. Bookmark official recall and public health pages for the latest updates, and don't hesitate to contact a healthcare provider if you're experiencing symptoms that concern you.

References

  1. CDC, "Cyclospora Outbreak Linked to Iceberg Lettuce" (2026). https://www.cdc.gov/cyclosporiasis/outbreaks/07-26/index.html
  2. CDC, "Investigation Update: Cyclospora Outbreak, July 2026" (2026). https://www.cdc.gov/cyclosporiasis/outbreaks/07-26/investigation.html
  3. CDC Newsroom, "Shredded Iceberg Lettuce Served at Taco Bell Locations Is Source of Cyclosporiasis Infections" (2026). https://www.cdc.gov/media/releases/2026/shredded-iceberg-lettuce-served-at-taco-bell-locations-is-source-of-cyclosporiasis-infections.html
  4. FDA, "Investigation of 15-State Outbreak of Cyclospora Illnesses: Iceberg Lettuce" (July 2026). https://www.fda.gov/food/outbreaks-foodborne-illness/investigation-15-state-outbreak-cyclospora-illnesses-iceberg-lettuce-july-2026
  5. CDC Health Alert Network, HAN00531: "Domestically Acquired Cyclosporiasis Cases in Multiple U.S. States" (2026). https://www.cdc.gov/han/php/notices/han00531.html
  6. Dubey JP, Khan A, Rosenthal BM. "Life Cycle and Transmission of Cyclospora cayetanensis: Knowns and Unknowns." Microorganisms (2022). PMC8779055.
  7. Almeria S, Cinar HN, Dubey JP. "Cyclospora cayetanensis and Cyclosporiasis: An Update." Microorganisms (2019). PMID 31487898.
  8. CDC, "Symptoms of Cyclosporiasis." https://www.cdc.gov/cyclosporiasis/signs-symptoms/index.html
  9. Mathison BA, Pritt BS. "Cyclosporiasis—Updates on Clinical Presentation, Pathology, Clinical Diagnosis, and Treatment." Microorganisms (2021). PMC8471761.
  10. CDC, "Clinical Guidance for Cyclosporiasis." https://www.cdc.gov/cyclosporiasis/hcp/clinical-guidance/index.html
  11. Ghorbani A, Menati R, Kakian F, et al. "Prevalence and Associated Risk Factors of Cyclospora cayetanensis in Immunocompromised Patients: A Systematic Review and Meta-Analysis." Canadian Journal of Infectious Diseases & Medical Microbiology (2025). PMC12411048.
  12. CDC, "Preventing Cyclosporiasis." https://www.cdc.gov/cyclosporiasis/prevention/index.html
  13. Sathyanarayanan L, Ortega Y. "Effects of Temperature and Different Food Matrices on Cyclospora cayetanensis Oocyst Sporulation." Journal of Parasitology (2006; most recent peer-reviewed data identified on this specific temperature threshold). DOI: https://doi.org/10.1645/GE-630R.1
  14. Wolf J, et al. "Effectiveness of interventions to improve drinking water, sanitation, and handwashing with soap on risk of diarrhoeal disease in children in low-income and middle-income settings: a systematic review and meta-analysis." The Lancet (2022). PMC9251635.

Update Timeline

  1. August 11, 2026:
    Added confirmed figures from the CDC's most recent investigation update — 6,358 confirmed cases, 278 hospitalizations, and 2 deaths.
    Identified the specific recalled retail brand (Walmart's Marketside) and the restaurant chain (Taco Bell) linked to the outbreak, per official CDC and FDA sources.
    Updated the recall-distribution figure to at least 27 states per FDA.
    Restructured the article with a table of contents, section dividers, and a unified title/SEO heading per site-wide format updates.
    New sources: CDC investigation update page, CDC Newsroom Taco Bell release, FDA 15-state investigation page.
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