How Long Does Food Poisoning Last?

Have You Fallen Ill with Food Poisoning in DC?

While food poisoning usually lasts between 12 and 48 hours, foodborne illness can be serious and life-threatening, with after-effects lasting for weeks or months. Regan Zambri Long’s award-winning Washington, DC food poisoning lawyers understand this and are ready to fight on your behalf for compensation for medical expenses, lost wages, and ongoing care.

Our board-certified attorneys have almost 200 years of combined experience, with two of them numbered among the top 1% of trial lawyers in DC and the U.S. We’ve secured multi-million-dollar verdicts such as $14 million, $5.5 million, and $5 million, received more than 100 five star Google reviews, and are honored routinely for our professionalism, ethics, and untiring commitment to justice.

Have you been a victim of food poisoning in the DC Metro? We’re here to help you get the compensation you deserve. We’ll manage every step of the process, working with top medical and food safety experts, coordinating medical billing, building claims backed by facts, and fronting all case costs. Contact Regan Zambri Long for a free consultation. We’re available 24 hours a day, seven days a week, and one of our attorneys will call you back personally. There’s no fee unless we win your case.

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How Fast Do Food Poisoning Symptoms Start?

The onset of food poisoning symptoms varies depending on the type of contamination. Bacterial symptoms, like those associated with Campylobacter or Clostridium perfringens, usually begin within 24 hours and sometimes start as soon as 30 minutes after eating. Virus symptoms, like those associated with Norovirus, can start 12 to 48 hours after eating. Symptoms from parasites such as Giardia lamblia may take up to a week to appear.

 

If you suspect you or a family member has food poisoning, it’s important that you and/or they get tested as soon as possible. If the test confirms you or they have a foodborne illness, make sure you keep the results, any associated medical records, and proof linking your food poisoning to a specific food product or dining experience, such as food remains or receipts. This can help your food poisoning lawyer to prove your case.

What are the Types of Food Poisoning Germs and the Duration of Symptoms?

The appearance of severe symptoms from food poisoning and their duration will vary depending on the germ in the contaminated food. According to the Centers for Disease Control and Prevention, these can include:

Staph Food Poisoning (Staphylococcus aureus)

The toxins produced by the Staphylococcus aureus bacteria usually cause symptoms to appear 30 minutes to eight hours after eating contaminated food and last about a day. Common symptoms usually include:

 

  • Diarrhea
  • Nausea
  • Stomach cramps
  • Vomiting

This type of food poisoning occurs when foods are not cooked after being handled by a person carrying Staph who has not washed their hands. Common sources of contamination include sliced meats, sandwiches, pastries, and other similar foods.

Vibrio

Vibrio bacteria are usually found in undercooked shellfish and raw oysters. When ingested, this bacteria can cause symptoms such as:

 

  • Watery diarrhea
  • Abdominal cramps
  • Nausea
  • Vomiting
  • Chills
  • Fever

These common symptoms of Vibrio start within 24 hours and last around three days.

Clostridium perfringens

Food contaminated with Clostridium perfringens is one of the most common causes of food poisoning in the United States, and the CDC estimates that it is responsible for nearly 1 million cases of foodborne illness each year. Outbreaks of C. perfringens occur when poultry, meat, gravy, and food cooked in large batches are stored at an unsafe temperature of 40°F–140°F. The symptoms appear after 6 to 24 hours, and include:

 

  • Diarrhea
  • Stomach cramps

These symptoms usually last for less than 24 hours.

Norovirus

Norovirus infections are usually mistaken for a stomach flu. This virus is the most common cause of foodborne illness symptoms, such as:

 

  • Vomiting
  • Diarrhea
  • Severe dehydration
  • Stomach pain
  • Fever
  • Headache
  • Body aches

These symptoms generally appear in 12 to 48 hours. Norovirus food poisoning is commonly caused by contaminated water, contact with an infected person, contact with contaminated surfaces, leafy greens, fresh fruits, and shellfish. People with norovirus usually get better in one to three days, but they are still contagious for a few days after the symptoms disappear.

Botulism

Clostridium botulinum is a bacterium that produces a toxin that attacks the body’s nerves, causing difficulty breathing, muscle paralysis, and even death. Symptoms of botulism appear 18 to 36 hours after eating contaminated food and include:

 

  • Muscle weakness,
  • Difficulty swallowing
  • Blurred vision
  • Slurred speech
  • Difficulty moving the eyes

This bacteria is commonly found in improperly canned foods, fermented foods, or homemade alcohol. About 5% of people diagnosed with botulism die, according to the CDC. The top-rated Washington, DC food poisoning lawyers at Regan Zimbri Long will defend your rights and fight for compensation on your behalf if you have been affected by botulism.

Campylobacter

Campylobacter is the most common bacterial cause of diarrheal illness, affecting 1.5 million people in the United States annually. Symptoms include:

 

  • Bloody diarrhea
  • Fever
  • Stomach cramps

Symptoms usually appear after two to five days of exposure. Raw or undercooked poultry that has been consumed or prepared on cutting boards that spread the bacteria to other foods, unpasteurized milk and dairy products, contaminated water, and contact with cat or dog feces have been associated with outbreaks of Campylobacter. Common complications can include:

 

  • Irritable bowel syndrome
  • Temporary paralysis
  • Arthritis

Campylobacter can also spread to the bloodstream of immunocompromised people and cause a life-threatening infection.

E. coli (Escherichia coli)

Undercooked or raw ground beef, raw cookie dough, unpasteurized milk and juice, raw vegetables and sprouts, and contaminated water have been linked to E. coli outbreaks. It takes 3 to 4 days for E. coli food poisoning symptoms to appear. Symptoms can include:

  • Vomiting
  • Diarrhea
  • Stomach cramps

Most people feel better after 5 to 7 days. According to the World Health Organization, 5–10% of victims develop hemolytic uremic syndrome, which is a life-threatening condition that affects the kidneys and blood clotting functions.

Cyclospora

Cyclospora cayetanensis is a single cell parasite that causes an intestinal infection called cyclosporiasis. It is spread when food or water is contaminated with feces and is often found in raw fruits, vegetables, and herbs. Cyclospora food poisoning symptoms generally appear 1 week after infection and include:

 

  • Watery diarrhea
  • Weight loss
  • Loss of appetite
  • Stomach pain
  • Bloating
  • Gas
  • Nausea
  • Fatigue

This foodborne illness can last for a few days, a month, or even longer, and it is common for people to experience a relapse.

Listeria monocytogenes

Listeria is a bacterium that causes a serious infection. Symptoms appear two weeks after consumption of foods like soft cheeses, raw sprouts, hot dogs, pâtés, melons, raw milk, and smoked fish. It causes flu-like symptoms like:

 

  • Fever
  • Muscle aches
  • Fatigue
  • Headaches
  • Confusion
  • Stiff neck
  • Loss of balance
  • Seizures

Listeria is particularly dangerous for pregnant women and newborns and can lead to premature delivery, miscarriage, stillbirth, and life-threatening infections. If you or your baby has Listeria food poisoning, our board-certified trial attorneys will work tirelessly to ensure you are compensated fairly for your medical expenses and for the pain and trauma you have suffered.

What are Common Sources of Food Poisoning?

Food poisoning can occur when food is not cooked or stored at the right temperature, when a sickened worker or consumer contaminates it, and when it contains substances that are toxic to the body, including:

 

  • Raw seafood
  • Uncooked eggs
  • Unwashed raw fruits and vegetables
  • Undercooked meat or seafood
  • Food stored at unsafe temperatures
  • Improperly canned and fermented foods are used to prepare other foods, like potato salad
  • Soft cheeses or raw dairy products
Informational infographic by Regan Zambri Long Personal Injury Lawyers explaining how long food poisoning symptoms typically last depending on the type of bacteria involved. Includes key pathogens like Staph, Clostridium perfringens, Norovirus, E. coli, and Listeria. The chart shows when symptoms begin, what signs to expect (vomiting, diarrhea, cramping), and how long they generally persist. Designed for Washington, DC residents seeking medical and legal guidance after foodborne illness. If you’ve experienced food poisoning in DC, call 202-960-4596 for help.

Which People are at Higher Risk of Food Poisoning?

Though food poisoning can affect anyone, certain groups are at greater risk of more serious complications. These include pregnant women, young children, the elderly, and people with weakened immune systems.

Older Adults 65+

According to the CDC, almost half of people 65 or older who have food poisoning caused by SalmonellaCampylobacterListeria, or E. coli require hospitalization and immediate medical attention. Because of their age, their immune systems may not be as strong and able to fight off the infection.

Pregnant Women

Foodborne illnesses can cause significant harm to an unborn baby. Listeria, for example, is one of the most dangerous types of food poisoning during pregnancy because pregnant women are 10 times more likely to get it than other people. In newborns, a Listeria infection can cause serious illness requiring immediate medical treatment and even death.

Young Children Under 5

Young children with developing immune systems can suffer severe illness from food poisoning and are three times more likely to be hospitalized if they get a Salmonella infection. One in seven children under 5 years of age who are diagnosed with E. coli suffer from kidney failure. It is especially important to prevent dehydration in young children and seek medical attention immediately if they show food poisoning symptoms.

People with a Weakened Immune System

People with HIV/AIDS, cancer, autoimmune disorders, and other medical conditions that weaken their immune system may have difficulty fighting off a foodborne illness. They are more likely to experience long-term effects from the infection. For instance, people on dialysis are 50 times more likely to get Listeria.

Serious Health Problems and Long-Term Effects From Food Poisoning

The effects of food poisoning can last long after the symptoms have gone away. People who have suffered severe complications from foodborne illnesses may experience chronic health issues and even permanent disabilities including:

 

  • Kidney damage or kidney failure – Kidney disease can require a lifetime of dialysis or even a kidney transplant.
  • Brain and nerve damage – This type of damage can result in serious cognitive effects, paralysis, and even death.
  • Arthritis – Food poisoning may cause long-term joint pain and swelling in the joints.
  • Meningitis – People may suffer hearing loss, seizures, and permanent disabilities such as scarring and amputations from sepsis.

How to Prevent Food Poisoning

The most important way to prevent food poisoning and foodborne disease is to practice safe handling of food. This includes practicing proper hygiene and washing hands and surfaces regularly, thoroughly cooking raw meat and eggs, avoiding cross-contamination between raw and cooked foods, refrigerating perishable items promptly after cooking or purchase, and reheating leftovers properly.

Why Choose Regan Zambri Long as Your Washington, DC Food Poisoning Lawyer?

If you or a loved one has suffered severe side effects from food poisoning, you may be entitled to compensation. The Washington, DC food poisoning lawyers at Regan Zambri Long are here to help victims of food contamination seek justice.

The recipients of numerous prestigious accolades, our attorneys have recovered more than $1 billion in verdicts and settlements for victims. Among these are $14 million and $5 million settlements for product liability. Some of our team members belong to the American Association for Justice, and two of our partners are past presidents of the American Board of Trial Advocates’ DC chapter. Lawdragon named all six of our partners among 2025’s 500 Leading Plaintiff Consumer Lawyers in the U.S. Senior partner, founding member, and VP, Salvatore Zambri is also our leading food poisoning lawyer and was named Lawyer of the Year for Product Liability Litigation by Best Lawyers. When you turn to us for help, you’re turning to a powerhouse team that’s 100% committed to ensuring you get the justice and the compensation you deserve.

 

You only have three years from the date of injury to file a personal injury or product liability claim in Washington, DC. Call 202-960-4596 or contact us online today to schedule a free consultation with one of our attorneys.

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