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Foodborne illness: First aid

When to seek emergency help:

Seek medical help right away if:

  • Symptoms are severe, including severe belly pain or watery diarrhea that turns very bloody within 24 hours.
  • You or the affected person is considered part of a high-risk group. These groups include:
    • Older adults.
    • Infants and young children.
    • Pregnant people.
    • People with an ongoing condition, such as diabetes or AIDS.
    • People receiving treatment for cancer, including chemotherapy or radiation therapy.
  • Botulism poisoning is suspected. Botulism is a potentially fatal food poisoning that results from the ingestion of a toxin formed by certain spores in food. Botulism toxin is most often found in home-canned foods, especially green beans or tomatoes.

    Symptoms of botulism usually begin 12 to 36 hours after eating the contaminated food and may include headache, blurred vision, muscle weakness and eventual paralysis. Some people also have nausea and vomiting, constipation, difficulty breathing, dry mouth, or are not able to urinate. These symptoms require immediate medical attention.