You walk up to the Taco Bell counter expecting your usual order, only to find a sign warning you that the lettuce, guacamole, and pico de gallo are missing. Even worse, you’re still expected to pay full price for a stripped-down burrito.
Taco Bell is currently pulling shredded iceberg lettuce and other fresh ingredients from its menus across multiple US states. The culprit is a massive outbreak of cyclosporiasis, a nasty stomach bug caused by a microscopic parasite called Cyclospora cayetanensis. This little organism is famous for one incredibly unpleasant symptom: watery, explosive diarrhea that can drag on for weeks if it isn't treated. If you enjoyed this piece, you might want to check out: this related article.
If you're wondering whether your local drive-thru is safe, or what actually happens if you eat contaminated greens, here is the breakdown of what is happening right now.
The Source of the Outbreak
Federal investigators from the CDC and the FDA have zeroed in on shredded iceberg lettuce sourced from Mexico and supplied to Taco Bell locations by Taylor Farms. The issue has heavily impacted locations in five specific states: For another angle on this story, check out the recent update from WebMD.
- Michigan
- Ohio
- Indiana
- Kentucky
- West Virginia
While Taco Bell hasn't officially named the supplier in their public statements, industry insiders and investigators confirmed the link to Taylor Farms. In response, the fast-food giant decided to indefinitely banish the affected lettuce supply nationwide, promising to swap in safe, alternative greens within 24 hours in the affected regions.
This isn't a small, localized hiccup. Michigan alone has been absolutely hammered, reporting over 4,300 cases of the illness. Nationally, the CDC has confirmed thousands of cases, with at least 141 hospitalizations.
What is Cyclospora and Why is It on Your Taco
You don't catch Cyclospora from a coughing coworker. It’s a parasite that gets into the food chain when fresh produce is grown using irrigation water contaminated with human feces.
Once those sticky parasite eggs—called oocysts—cling to a leaf of romaine or iceberg lettuce, they are notoriously difficult to get rid of. Standard chemical sanitizers used by large-scale food processors don't reliably kill them. Scrubbing your lettuce under the kitchen sink tap helps, but it is far from a guarantee. The only way to completely destroy the parasite is to cook the food to at least 158°F (70°C)—but nobody wants warm, wilted, cooked lettuce on their crunchwrap.
Because summer is the peak season for importing fresh herbs, berries, and leafy greens, these outbreaks almost always spike between May and August.
The Reality of the Symptoms
If you have eaten at Taco Bell recently in the Midwest or Mid-Atlantic and feel fine today, you aren't necessarily out of the woods yet. The parasite has an incubation period that typically lasts about a week, though symptoms can start anywhere from two days to more than two weeks after exposure.
When the infection hits, it doesn't just give you a mild stomach ache. You can expect:
- Severe, watery, and frequent diarrhea
- Intense stomach cramps and bloating
- Chronic fatigue and muscle aches
- Nausea and vomiting
- Significant weight loss and a total loss of appetite
Without medical intervention, this stomach bug can persist for over a month. It can also seem to go away, only to return with a vengeance a few days later.
What to Do If You Think You're Sick
If you are experiencing ongoing, watery diarrhea that hasn't cleared up after a couple of days, do not just try to tough it out with over-the-counter anti-diarrheal meds.
- See a doctor and ask for a specific test. Standard stool tests ordered by clinics do not routinely check for Cyclospora. You must explicitly tell your healthcare provider that you suspect a Cyclospora infection so they can run the correct diagnostic panel.
- Get the right prescription. Unlike viral stomach flu or some bacterial infections that just need to run their course, cyclosporiasis is highly treatable with a specific course of sulfa-based antibiotics (typically Bactrim).
- Hydrate constantly. The sheer volume of fluid loss from explosive diarrhea makes dehydration a genuine danger, which is why over a hundred people have already ended up in the hospital during this outbreak. Drink electrolyte solutions, not just plain water.
- Report it. If you test positive, your local health department will likely reach out to ask what you ate. Be honest about your fast-food stops; this is the only way food safety investigators can track down contaminated batches and pull them before more people get sick.
