Cristy Lee Cooper is on her third week in the hospital as she battles the debilitating ‘diarrhea parasite’ that has struck down thousands of Americans.
‘I had never heard of it,’ she told the Daily Mail from her hospital bed in San Antonio, Texas. ‘I was going [to the bathroom] up to 30 times a day – every few minutes. I’ve never had anything like that in my life.’
Cooper first became concerned by her symptoms – relentless diarrhea, fatigue and joint pain – when they didn’t ease after 48 hours.
Realizing this was not a typical stomach bug – and already immunocompromised and on dialysis because of a pre-existing condition – she went to the hospital on June 28, where testing confirmed cyclosporiasis.
She was admitted and given IV fluids and antibiotics. After five days and signs of improvement, she was discharged. However, just two days later she was forced to return and admitted for seven days.
After more antibiotics and fluids, she was discharged again. But within 48 hours of being home her symptoms of watery diarrhea, fatigue, severe stomach cramps and nausea came roaring back. Now she’s on her third hospital admission.
‘My body is tired. My muscles have already atrophied. My legs look kind of anorexic and I can’t even stand to look at them right now,’ she said.
Cooper is among an estimated 7,000 Americans who have contracted cyclosporiasis, a parasitic infection often spread through leafy greens and fruit contaminated with the cyclospora parasite. She believes she caught it from a bagged salad kit she ate in mid-June.
Cristy Lee Cooper from Texas has been hospitalized three times since late June after contracting Cyclospora from a bagged salad
Health officials are still investigating the outbreak’s source. The FDA initially linked it to iceberg lettuce from produce grower Taylor Farms that had been supplied to Taco Bell.
On July 17, 2026, Taylor Farms de Mexico initiated a voluntary recall of all iceberg lettuce sourced from central Mexico and stopped supplying it to Taco Bell. Taco Bell has confirmed it is no longer using lettuce from that supplier.
However, on Sunday, the FDA revealed that a test result for the parasite taken from a sample of the lettuce was a false positive and the investigation is ongoing.
Now among dozens estimated to be hospitalized with the infection, Cooper’s treatment has been complicated from the start.
She is allergic to sulfa drugs – the first-line treatment for cyclosporiasis – so doctors tried two other antibiotics. Neither worked.
Desperate to clear the pathogen, doctors in the intensive care unit risked microdosing Cooper with the sulfa medication commonly known as Bactrim intravenously over seven hours to test her reaction.
So far, she hasn’t had an allergic reaction, but is not yet out of the woods.
Cyclosporiasis symptoms tend to come in waves, with periods of improvement followed by a sudden return of diarrhea, stomach cramps and fatigue.
For Cooper, an active grandmother to three young boys, the crushing fatigue brought on by the illness has been unbearable.
‘My bed is two feet from the sink, and when I get up and go brush my teeth here, by the time I’m finished, I’m already leaning on the counter,’ she said.
Since her ordeal began, a normally fit Cooper has lost nearly 20 pounds.
She has also suffered severe joint pain that felt like her body was ‘going to explode.’ This is the result of her immune system going into overdrive to fight off the cyclospora infection in the gut, which subsequently triggered joint inflammation.
Subsequent muscle atrophy means Cooper will have to undergo physical therapy for at least several weeks to regain her strength.
‘I don’t know if other people have the same problem, but this has really knocked me down very, very low,’ she said.
A typically fit and active grandmother of three, Cooper has shed nearly 20 pounds since she got sick
Suspected sources Taylor Farms and Taco Bell are at the center of multiple lawsuits filed in connection with the cyclosporiasis outbreak.
Among those filing is Army veteran David Ott, 47.
Ott was on a business trip to Youngstown, Ohio, last month where he ate at a local Taco Bell twice in three days. The FDA has listed Taco Bell locations in Ohio, Kentucky, Indiana, Michigan, and West Virginia in its multi-state outbreak investigation as ‘stores affected.’
When he returned to his home in Texas six days later, he began experiencing such extreme cramping he thought he was going to pass out.
‘That lasted about an hour of that extreme pain and then that’s when the watery diarrhea kicked in,’ Ott told the Daily Mail.
In addition to stabbing cramps, Ott suffered a fever, a constant urge to vomit, dizziness, nausea and headaches.
At the hospital, doctors ran blood and stool tests, CT scans and a colonoscopy, which he said revealed intestinal inflammation so severe it was restricting blood flow throughout his body, raising fears of a life-threatening cardiac issue.
But bacteria cultures all came back negative.
‘Each result that came through caused more anxiety,’ he said. ‘You just don’t know what’s going on, and every time it came back negative, you’re like, ‘What is this thing?’
Despite the negative results, doctors prescribed him powerful antibiotics while they tried to work out what was wrong with him.
It was not until he saw a news alert about the parasite that the pieces came together.
‘I’m sitting there, I’m on my phone and I get emergency alerts and I saw that the CDC said that there was an outbreak of this,’ he said.
‘So I told my doctors, “Hey, this thing seems exactly like what I have, and oddly enough, here I am in the hospital.” They kind of dismissed it because it’s not really in my area and it was very frustrating.’
Army veteran David Ott, 47, is one of more than 1,600 Americans confirmed to have cyclospora. He filed the first lawsuit against Taco Bell and Taylor Farms, hoping to hold the industry accountable
The Space Force contractor was hospitalized with severe intestinal inflammation after eating at a Taco Bell in Ohio
After all other tests came back negative, the hospital finally agreed to run the more involved screening for cyclospora.
Standard stool tests typically do not detect cyclospora, making the parasite difficult to diagnose. Even when people have severe symptoms tests can return false negatives so multiple samples are often needed.
When doctors sent Ott’s stool sample to a specialized lab in Utah, his results came back positive a week later and he was immediately started on Bactrim.
But even after starting the medication, he continues to be plagued by debilitating symptoms and was forced to cancel a family vacation.
‘Today it’s been pretty bad,’ Ott said. ‘It’s been kind of in my lower intestine and today it’s a little bit higher up, where it’s hurting pretty good right now, actually.’
Ott has since joined forces with food safety lawyer Ron Simon and filed a lawsuit against Taco Bell and Taylor Farms.
He hopes the lawsuit will force the industry to clean up its act so that no one else has to go through what he did.
He said: ‘I want to be able to go to a restaurant and not worry now that I’m going to get sick from eating the food.’
Daily Mail has reached out to Taco Bell and Taylor Farms for comment. Neither company has filed a response to the lawsuit yet.
A colonoscopy revealed inflammation so severe it was cutting off blood flow to Ott’s intestine
Another victim, Maria Aguilo, 23, told the Daily Mail that she first fell ill in the middle of a workday on June 22.
Vomiting, diarrhea and excruciating cramping pains appeared seemingly out of nowhere and by day two the marathon runner from St Louis, Missouri, was running to the bathroom between six and 10 times an hour.
When she went to urgent care she was given an IV to rehydrate and underwent blood tests to rule out life-threatening conditions. When a doctor there found nothing amiss, they sent Aguilo home.
After a week passed without any improvement, Aguilo’s primary care physician ordered an array of tests.
‘Eventually, when I saw all the news coming out about it, something deep down inside me told me it was that. So I pushed to get tested,’ she told the Daily Mail.
After standard tests for common illnesses such as E. coli and Salmonella came back negative, her doctor felt confident enough to prescribe the antibiotics for Cyclospora as they awaited official test results. These came back positive.
As Aguilo battled the infection, she became so sick she had to take three weeks of medical leave from her job as a psychometrist – a specialist who administers and scores psychological tests – at the Washington University Medical Campus.
‘I was bedridden, basically. I could not do anything,’ she said. ‘I literally could not work. Even if I wanted to, I couldn’t.’
In addition to nausea, Aguilo was so dehydrated that she suffered terrible headaches.
‘I was trying to drink as much coconut water and Gatorade as I could,’ she said. ‘I just felt completely defeated because I was literally following a liquid diet and I was still in pain. I was still running to the bathroom multiple times an hour.’
Aguilo believes she has now finally turned the corner after finishing her antibiotics.
‘Today is actually my first normal day since everything started,’ she said.
She is still fatigued but is now able to walk without getting winded and is slowly reintroducing solid foods.
Aguilo believes her illness is tied to the strawberries she previously ate for breakfast every morning.
She also frequently buys whole heads of romaine lettuce, which she said could have harbored the parasite, though this has not been confirmed.
‘I am avoiding all leafy greens for the near future and raw berries,’ she said.
Maria Aguilo, 23, a marathon runner from St Louis, Missouri, was bedridden for three weeks with Cyclospora. ‘I literally could not work. Even if I wanted to, I couldn’t,’ she told the Daily Mail
The marathon runner is now recovering after three weeks of debilitating illness
Leafy greens and berries are two common sources of cyclosporiasis outbreaks. The parasite often hides in their hard-to-clean crevices, leaving it undisturbed even after consumers wash their produce.
Unlike other foodborne pathogens, cyclospora does not come from farm animals, and humans are its only natural host. It spreads through the fecal-oral route, typically contaminating produce at the farm level through infected human feces.
‘Most people think contamination like this happens because of a dirty surface they can see, or a restaurant with shady practices, but cyclospora doesn’t follow that rule,’ Texas-based food safety expert Jason Reese told the Daily Mail.
Cyclospora is also notoriously hard to kill because the parasite is encased in a tough shell that resists standard disinfectants, allowing it can survive for weeks or months.
Symptoms can also take more than a week to appear. This means people may have forgotten what they have eaten by the time investigations are made, making outbreaks difficult to trace and stop.
As the outbreak continues to spread, Reese warned that proper hygiene is now of the utmost importance: ‘It should be in full force in your kitchen.’
Experts recommend sticking to produce with a peel, such as bananas, avocados and oranges, and cooked vegetables. Heat kills the parasite at 158 degrees Fahrenheit.
When washing produce, use running water and scrub firm items like cucumbers and melons with a brush. Vinegar or saltwater soaks are no more effective than water.
Always use clean cutting boards and utensils and wash your hands before and after handling produce.
