Can I Sue for Cyclosporiasis Poisoning?

 Posted on July 23, 2026 in Food Poisoning

2026 has seen an unusually large surge in cyclosporiasis-related food poisoning in the US, according to CBS News. The CDC reported more than six times as many confirmed domestically acquired cases as it had by roughly the same point in 2025. The Illinois Department of Public Health has reported more than 400 confirmed and probable cases in the state so far. Dozens of people have been hospitalized.

If you or someone in your family developed cyclosporiasis during this surge, you may be wondering whether you have a legal claim. An Illinois food poisoning attorney can review your case and help you understand your options.

What Caused the 2026 Cyclosporiasis Outbreak?

Cyclosporiasis is an intestinal illness caused by a microscopic parasite called Cyclospora. It's usually spread through food or water contaminated with feces. It commonly turns up in fresh produce that isn't cooked before it's eaten.

Investigators are examining multiple clusters and outbreaks. One major outbreak has been linked to shredded iceberg lettuce, but not every reported 2026 case has been connected to that lettuce. Investigators concluded that a likely source for much of the contaminated lettuce is a certain supplier's central Mexico farms. A substantial amount of lettuce made its way into restaurant and grocery supply chains before it was identified as contaminated. This is, in part, why the outbreak has been so severe. 

What Are the Symptoms of Cyclosporiasis?

According to the Centers for Disease Control and Prevention, symptoms usually begin about one week after exposure, though they can appear anywhere from two days to two weeks after. 

Not everyone who is infected develops symptoms. The CDC lists the most common symptoms as:

• Watery diarrhea

• Loss of appetite

• Weight loss

• Cramping

• Bloating

• Increased gas

• Nausea

• Fatigue

Less common symptoms can include vomiting, body aches, headache, low-grade fever, and other flu-like symptoms. Without treatment, symptoms can last anywhere from a few days to a month or longer. Diarrhea in particular may clear up and then return. Fatigue may also linger even after the gastrointestinal symptoms are gone.

Most healthy people eventually recover, although the illness may last longer without treatment. The preferred treatment is an antibiotic called trimethoprim-sulfamethoxazole, but some people become sick enough to need hospital care.

Can I Sue if I Got Sick From Contaminated Food in Illinois?

Illinois's Food, Drug and Cosmetic Act (410 ILCS 620/10) prohibits the sale of "adulterated," or contaminated, food. Selling contaminated food may lead to government enforcement and may also provide evidence relevant to a civil claim for damages.

You typically don't need to prove that a company intended to sell contaminated food. Depending on the legal claim, liability may be based on negligence, breach of warranty, or proof that the food was unreasonably dangerous when it left the defendant’s control. 

Who Can Be Held Liable for a Cyclosporiasis Outbreak?

Depending on how your illness happened, liability could fall on more than one party in the supply chain. Potentially liable parties may include:

• The farm or grower where the contaminated produce originated

• The distributor or supplier

• A grocery store or restaurant that served the contaminated food

• A food manufacturer that used the ingredient in a packaged product

Because outbreaks like this one often involve a long supply chain, identifying every liable party can take some investigation. This is one reason it helps to have an attorney look into your case.

What Do I Need to Prove to Win a Food Poisoning Lawsuit in Illinois?

To succeed in a food poisoning claim, you generally need to show that the contaminated food you ate caused your illness. You will also need to show that you suffered damages as a result, such as medical bills, lost income, or pain and suffering. Testing, medical records, and receipts or purchase history can all help establish this connection.

How Long Do I Have to File My Food Poisoning Claim in Illinois?

Illinois generally requires a personal injury lawsuit, including a food poisoning claim, to be filed within two years after the cause of action accrues.

Call an Illinois Food Poisoning Attorney Today

Getting sick from contaminated food can mean missed work at the very least. In serious cases, it may result in a visit to the hospital. 

At Newland & Newland, LLP, we have secured millions of dollars in verdicts for food poisoning victims, including clients who spent time in the hospital but didn't experience long-term effects. We focus specifically on cases involving foodborne illness and understand what it takes to build a strong claim.

Call an Illinois food poisoning lawyer at 312-981-0409 for a free consultation about your case.