CDC - Foodborne Outbreak Investigations - Table of Contents

CDC - Foodborne Outbreak Investigations - Table of Contents: "A Step-by-Step Guide to Investigating Foodborne Outbreaks

In the United States, millions of foodborne illnesses occur each year. A foodborne illness is caused by eating or drinking a contaminated food or beverage. When two or more people get the same illness from the same contaminated food or drink, the event is called a foodborne outbreak. Illnesses that are not part of outbreaks are called 'sporadic.' Public health officials investigate outbreaks to control them, so more people do not get sick in the outbreak, and to learn how to prevent similar outbreaks from happening in the future. Here, we explain how the public health community detects, investigates, and controls foodborne outbreaks.

Foodborne illnesses are caused by pathogens and toxins (chemicals). Pathogens are germs, such as bacteria, viruses, and parasites, that can cause illness. More than 250 pathogens and toxins are known to cause foodborne illness. Nearly all of them can cause an outbreak.

Many types of foods can become contaminated. Some of the foods that have been linked to outbreaks are eggs, fish and shellfish, meat, nuts, poultry, raw (unpasteurized) milk, and raw fruits and vegetables.

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