For weeks, the source behind a surging wave of “explosive diarrhea” cases across the Midwest was a mystery. That’s starting to change: a specific product, from a specific supplier, tied to a specific restaurant chain, is now at the center of the investigation.
Shredded iceberg lettuce supplied by Taylor Farms and sold at some Taco Bell restaurants has been linked to the multistate cyclosporiasis outbreak, according to a source familiar with the investigation. It’s the most specific lead reported so far in an investigation that’s spanned months.
Key Takeaways
- Shredded iceberg lettuce from Taylor Farms, served at certain Taco Bell locations, has been linked to the outbreak by a source close to the investigation — though it hasn’t been officially confirmed by the CDC or FDA.
- The Taco Bell-linked cases are concentrated in four Midwest states — Michigan, Ohio, West Virginia, and Kentucky — with at least 400 cases tied to this specific cluster.
- Michigan alone has now reported more than 4,300 cases, and confirmed cases nationwide are over six times higher than at this point last year.
- Taco Bell has voluntarily and temporarily pulled some ingredients from affected locations as a precaution, but hasn’t issued a recall, and says officials haven’t confirmed the link to them directly.
- Taylor Farms has been connected to foodborne illness outbreaks before, including E. coli in slivered onions in 2024 and cyclospora in lettuce back in 2013.
How the Lead Emerged
Michigan’s health department has interviewed more than 1,000 sick patients as part of its investigation, and lettuce or salad greens kept surfacing as a common thread. State officials say they can’t say with certainty that every illness traces back to the same exposure, but the sharp, concentrated rise in cases “strongly suggests” that most of these illnesses share a common source — which, if confirmed, would make this the largest cyclospora outbreak on record in the US. The source cluster tied specifically to Taco Bell and Taylor Farms accounts for at least 400 of the total cases, concentrated in the same four states where the affected restaurant locations are — though officials caution the product may have been distributed to other places too.
What Taco Bell and Taylor Farms Have Said
Taco Bell has stopped short of confirming any link, telling reporters that “public health officials have not confirmed a link to Taco Bell or any specific ingredient, supplier, restaurant or retailer,” while noting it has “voluntarily and temporarily removed limited ingredients at select restaurants as a precautionary measure.” Neither Taco Bell nor Taylor Farms responded to requests for comment on the more specific reporting linking shredded lettuce directly to their supply chain. Taylor Farms, a major supplier to grocery stores and restaurant chains nationwide, has a track record here: the company’s products were linked to an E. coli outbreak tied to slivered onions in 2024, and to a cyclospora outbreak involving lettuce in 2013 — adding to a broader pattern of foodborne illness incidents connected to the company over the past decade and a half.
Why Cyclospora Is Especially Hard to Trace
Unlike bacteria such as E. coli or salmonella, cyclospora is a parasite that spreads specifically through food or water contaminated with human feces, not from person to person. Infectious disease specialists note that it’s historically shown up in things like contaminated campground water or swimming areas, but in recent years has increasingly been traced to the food supply itself — particularly leafy greens and other produce that’s eaten raw. That makes tracing it back to a single grower or facility especially slow, since the parasite can enter the supply chain at multiple points, and testing for it isn’t part of routine stool panels — doctors have to specifically request it.
What This Means If You Eat at Taco Bell or Buy Bagged Lettuce
This is still an active, unconfirmed investigation, not a formal recall — so there’s no official instruction to avoid Taco Bell or Taylor Farms products specifically. That said, the same general precautions apply regardless of source: buying whole heads of lettuce over pre-cut or bagged versions, washing produce thoroughly, and cooking anything you can rather than eating it raw, since heat destroys the parasite entirely. If you’ve eaten at an affected Taco Bell location in the Midwest recently and develop sudden, watery diarrhea, mention it to your doctor and ask specifically for a Cyclospora test.
Sources: CNN, “Iceberg lettuce sold at Taco Bell linked to cyclospora outbreak” (July 16, 2026); Fox News, “Taco Bell Cyclospora outbreak: Doctors say whether lettuce is safe to eat” (July 2026); NBC News, “Nearly 7,000 cases of cyclosporiasis confirmed or under investigation nationwide, CDC says” (July 2026); Michigan Department of Health and Human Services outbreak updates.