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Long-Term Injury Claims Nationwide

PI-IBS Lawsuit

Post-Infectious IBS (PI-IBS) Lawyer

If food poisoning left you with irritable bowel syndrome that will not go away, the lasting harm can support a claim. Our lawyers connect Salmonella, Campylobacter, Shigella, norovirus, and E. coli infections to chronic PI-IBS.

$850M+
Recovered
6,000+
Cases Won
55+
Years Experience

Cause

Foodborne Infections That Can Cause Post-Infectious IBS (PI-IBS)

Post-Infectious IBS (PI-IBS) does not appear on its own. It develops after a foodborne infection, and the pathogens below are the infections most often linked to it. If you were diagnosed after one of these infections, you may have a claim against the company that sold the contaminated food. Select a pathogen to see how those cases are built.

These foodborne infections are the most common triggers, with Campylobacter and Shigella carrying the highest risk. Other gut infections can also cause PI-IBS, including waterborne parasites like Giardia and C. difficile after antibiotics, though our cases center on the lab-confirmed foodborne pathogens above.

Overview

Understanding Post-Infectious IBS (PI-IBS)

Most people expect a bout of food poisoning to end in a few days. For a meaningful number, it does not. The cramping, urgency, and unpredictable bowel symptoms continue for months or years after the infection clears, and a doctor eventually puts a name to it: post-infectious irritable bowel syndrome. If that has happened to you after a Salmonella, Campylobacter, Shigella, norovirus, or E. coli infection, the lasting harm may be the most important part of a legal claim. This is where a food poisoning case stops being about a ruined weekend and starts being about a chronic injury that changes how you live.

When food poisoning becomes a lifelong condition

The science behind these claims is solid, and that matters in court. A 2017 meta-analysis in Gastroenterology pooled 45 studies covering more than 21,000 people who had infectious enteritis. It found that 10.1% had IBS at 12 months and 14.5% beyond 12 months, and that people who were infected carried a 4.2 times higher risk of developing IBS than those who were not. These are not fringe findings. They are the kind of peer-reviewed evidence that supports causation in front of a judge, a jury, or an insurance adjuster who wants to know why your symptoms should be tied to a single contaminated meal.

Why these cases carry real value

A short illness that fully resolves is worth far less than a condition you carry for years. PI-IBS is, by definition, the second kind. It means ongoing medical care, repeat testing to rule out other gastrointestinal disease, medication, diet management, and the daily disruption of pain and urgency that interferes with work and travel. Compensation in a strong case can reflect medical costs, lost income, reduced earning capacity when symptoms linger, and the loss of quality of life that a chronic bowel disorder brings.

Our firm has handled this exact injury. In two prior matters, we obtained arbitration awards of $1,210,267 for a 52-year-old woman and $1,000,000 for a 14-year-old girl, both of whom developed irritable bowel syndrome after Salmonella poisoning. Those are real results in real IBS cases. They do not promise anything about your own claim, because every case turns on its own facts, but they show that this firm takes long-term complications seriously and knows how to present them.

The pathogens that trigger PI-IBS

Not every stomach bug leads to chronic IBS, but several foodborne pathogens are well documented as triggers. After a norovirus outbreak, one study found 13% of patients developed IBS at one year compared with 1.5% of controls, an eleven-fold increase in odds. Roughly 1 in 10 people developed IBS a year after a Salmonella outbreak. Campylobacter and Shigella carry some of the highest risk of all. A five-year study of a shigellosis outbreak found 31.8% of infected patients developed IBS versus 5.7% of controls. The Walkerton, Ontario waterborne outbreak, caused by E. coli O157:H7 and Campylobacter, left 36.2% of those who got sick with PI-IBS, compared with 10.1% of residents who stayed well.

For your claim, the pathogen is more than a medical detail. A lab-confirmed infection ties your illness to a source and to an established body of science. That is why getting a stool culture early, before you are fully recovered, can make the difference between a provable case and a he-said-she-said dispute.

What to do, and why time matters

If a doctor has diagnosed you with PI-IBS after food poisoning, a few steps protect both your health and any claim. Hold on to your medical records and any lab results showing the original infection. Keep receipts, delivery-app and loyalty records, and anything that documents what you ate and when symptoms began. Report the illness to your local or state health department, since their investigation can link your case to a larger outbreak and to a specific company.

The legal clock is unforgiving. Most states give you two to four years to file, and different rules can apply when the victim is a child or when a public entity is involved. The evidence clock is shorter still. Health departments discard stool samples, restaurants overwrite logs, and recall traceback windows close within weeks. PI-IBS adds a wrinkle, because the diagnosis only becomes clear after symptoms persist, yet the proof connecting your infection to its source is disappearing the whole time. Acting early is how you keep both your filing rights and your evidence intact.

Why Ron Simon & Associates

Our food poisoning law firm handles foodborne illness and nothing else. We have recovered more than $850 million for over 6,000 food poisoning victims, with more than 55 years of combined experience focused on these cases across all 50 states. We read recall notices, inspection histories, and traceback data the way other lawyers read a contract, and we know how to turn the medical literature on PI-IBS into a documented causation argument. If your food poisoning turned into a lasting bowel condition, contact us for a free case evaluation. You pay nothing unless we recover compensation for you.

Diagnosed with Post-Infectious IBS (PI-IBS)?

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Medical Overview

Post-Infectious IBS (PI-IBS): What You Need to Know

Key facts that may be relevant to your case

Warning Signs

Seek care immediately

Chronic abdominal pain

Recurring cramping or pain tied to bowel movements that continues long after the food poisoning resolves.

Altered bowel habits

Persistent diarrhea, constipation, or alternating patterns that were not present before the infection.

Bloating and distension

Ongoing abdominal bloating and a feeling of fullness that disrupts daily activity.

Urgency and frequency

Sudden, hard-to-control urges to use the bathroom that interfere with work and travel.

Fatigue and reduced quality of life

Lingering tiredness and a measurable drop in daily functioning that often accompanies the bowel symptoms.

Affected System

Gastrointestinal tract and gut-brain axis (bowel motility, visceral sensitivity, intestinal barrier and microbiome)

Typical Onset

Symptoms persist after the acute infection resolves and a diagnosis is typically confirmed when IBS criteria continue for months. Meta-analysis tracks IBS prevalence at 12 months and beyond after the original enteritis.

Most at Risk

Women, who develop PI-IBS at higher rates than menPeople who had a longer or more severe acute infectionPatients given antibiotics during the original illnessThose with anxiety or depression around the time of infectionPeople infected by Shigella, Salmonella, Campylobacter, norovirus, or STEC E. coli

Long-Term Effects

  • Years of chronic abdominal pain and unpredictable bowel symptoms
  • Ongoing need for medication, diet management, and specialist care
  • Lost work time and reduced earning capacity from flares and urgency
  • Diminished quality of life and limits on travel and daily routine
  • Repeat testing and treatment to rule out other gastrointestinal disease

Pooled IBS prevalence was 10.1% (95% CI 7.2-14.1) at 12 months and 14.5% (95% CI 7.7-25.5) beyond 12 months after infectious enteritis, with a 4.2-fold higher risk of IBS within the first year versus people who were not infected (Klem 2017, Gastroenterology).

Results

$850M+ recovered for food poisoning victims

Our firm has recovered more than $850M+ for over 6,000+ food poisoning victims across all 50 states. We document the full cost of a long-term injury, including future care, lost earning capacity, and reduced quality of life.

Arbitration Award
Salmonella
$1,210,267

52 year old female who developed irritable bowel syndrome from salmonella poisoning

Arbitration Award
Salmonella
$1,000,000

14 year old female who developed irritable bowel syndrome from salmonella poisoning

No Fee Unless We Win
You pay nothing upfront
55+ Years
Combined experience
6,000+ Cases Won
For food poisoning victims
Nationwide
All 50 states

Why Us

Trusted Food Poisoning Injury Attorneys

When a foodborne infection leaves you with a lasting injury, you need attorneys who understand the medicine and the food supply chain. We do this work and only this work.

Exclusive Focus

We handle food poisoning cases and nothing else. That focus means we know how a foodborne infection turns into a long-term injury and how to prove it.

Proven Track Record

$850M+ recovered for food poisoning victims nationwide. We have the results to back our reputation.

National Reach

Accepting cases in all 50 states. We can represent you no matter where you live or where you got sick.

No Upfront Costs

You pay us nothing unless we win. We advance every cost so you can focus on recovery.

Ron Simon & Associates Office
$850M+
Recovered
6,000+
Clients
55+
Years
50
States

Our Process

How We Can Help

A clear process for documenting a long-term injury and securing full compensation.

01

Free Case Review

Tell us what happened. We review your diagnosis and the infection behind it at no cost and explain your options.

02

Investigation & Evidence

We gather medical records, connect your Post-Infectious IBS (PI-IBS) diagnosis to the foodborne infection, and identify every responsible party.

03

Maximum Recovery

We fight for full compensation, including future medical care, lost earning capacity, and the lasting impact on your life.

Our Promise to You

No fee unless we win your case
Free confidential consultation
Direct attorney access
Nationwide representation
Rapid response team
$850M+ recovered for clients

Average Case Timeline

6-18 months

Related Outbreaks

Injured by Post-Infectious IBS (PI-IBS)?

You do not need to be part of a named outbreak to have a case. If a foodborne infection led to your Post-Infectious IBS (PI-IBS) diagnosis, we can investigate the source.

Contact us

FAQ

Post-Infectious IBS (PI-IBS) Lawyer FAQ

Answers to common questions about Post-Infectious IBS (PI-IBS) claims, what your case may involve, and how the legal process works.

Still have questions?

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Yes. If a company sold contaminated food that gave you an infection and you later developed lasting irritable bowel syndrome, you may have a claim against the parties responsible for that food. The key is connecting the original infection to a specific product or meal, then documenting that your IBS began afterward and has continued. A food poisoning lawyer can review your medical records and the outbreak evidence to assess whether a claim exists. The consultation is free, and you owe nothing unless there is a recovery.

Sources & Citations

Information on this page is compiled from the following authoritative sources:

This content is provided for informational purposes only and does not constitute legal advice. Information is current as of the date accessed. For the most up-to-date outbreak information, please consult official CDC and FDA websites.

Last updated June 18, 2026 · Reviewed by Ron Simon
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Injured by Post-Infectious IBS (PI-IBS)? Talk to a lawyer today.

A long-term injury from a foodborne infection can mean years of treatment and lost income. Find out what your case may be worth in a free, confidential review.

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