Madison County Health Department

Food-Borne Illness

Environmental Health Services investigates all illness complaints involving foods or beverages. Complaints may also warrant a laboratory-assisted investigation if they meet at least one of the following criteria:
  • An incident in which two or more persons have the same disease, have similar symptoms, or excrete the same pathogens; and there is a time, place or person association between these persons.
  • A single case of suspected botulism, a confirmed case of Vibrio vulnificus or Vibrio cholera, a single case of mushroom poisoning or a case of ciguatera or paralytic shellfish poisoning may be considered an incident warranting further investigation.
  • A physician requests laboratory services specific to an individual's symptoms associated with a suspect food poisoning.
Complaints arising from the consumption of foods prepared in private homes generally have no potential for public exposure and usually are not considered for laboratory investigation.

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