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                                                                                                January 10, 2025

FDA Oversight of Food Safety and Foodborne Illness Outbreaks


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The Centers for Disease Control and Prevention (CDC)
estimate that foodborne pathogens account for 48 million
illnesses, 128,000 hospitalizations, and 3,000 deaths per
year. In 2024, the Food and Drug Administration (FDA)
investigated more than 20 foodborne illness outbreaks
responsible for causing at least 1,364 illnesses, 357
hospitalizations, and 7 deaths. FDA regulates 77% of the
U.S. food supply, covering more than 220,000 facilities,
including farms, food manufacturing facilities, distributors,
and other entities in the food supply chain. About 40% of
these facilities are located domestically.

FDA-regulated foods include produce, seafood, shell eggs,
infant formula, packaged foods, and others. The U.S.
Department of Agriculture's (USDA's) Food Safety and
Inspection Service regulates the rest of the U.S. food
supply, including most meat and poultry and some egg
products. Several federal, state, and local public health
agencies play a role in food safety and foodborne illness
response.

The FDA  Human  Foods Program  coordinates all FDA
activities related to food safety and nutrition. This In Focus
summarizes FDA's  role in preventing and responding to
foodborne illnesses.

Food Safety Risks
Many  pathogens that cause foodborne illnesses, including
E. coli, Listeria, Salmonella, and Clostridium botulinum,
reside throughout the environment. Given the appropriate
conditions, these pathogens can multiply quickly and
contaminate foods during production. Food safety
procedures work to limit the risks of contamination that
ingestion causes illness. Some measures, such as using heat
(e.g., pasteurization, cooking), pressure, or pH control,
directly reduce the number of active pathogens. Such
methods are not useful for some foods that are not fully
cooked or otherwise processed before consumption, such as
fresh produce or eggs. Additionally, some foodborne
illnesses, notably botulism, are caused by bacteria making a
toxin that is not eliminated by cooking.

Food Safety Laws and Regu ations
The Federal Food, Drug, and Cosmetic Act (21 U.S.C.
§§301 et seq.) is a major federal law on food safety. The act
authorizes FDA to regulate certain foods and prohibits the
introduction of adulterated foods into interstate commerce.
Examples  of how food is deemed adulterated include if it
bears or contains any poisonous or deleterious substance
which may  render it injurious to health or if it has been
prepared, packed, or held under insanitary conditions
whereby it may have become contaminated with filth (21


U.S.C. §342(a)-(c)). Adulterated foods include those with
pathogens or their toxins.

Congress has provided FDA with additional authorities and
has influenced the level and direction of food safety
oversight. Congress directed FDA to establish
manufacturing and nutritional standards for infant formula
and provided mandatory recall authority in 1986 (P.L. 99-
570). In 2011, the Food Safety Modernization Act (FSMA;
P.L. 111-353) amended FDA's  existing structure and
authorities to require comprehensive preventive controls
across the food supply to minimize contamination risk.
FSMA   directed FDA to regulate foods and operations that
previously lacked detailed requirements. FSMA also
provided FDA  with additional inspection authorities and
mandatory recall authority if the agency deemed or
suspected regulated foods to be adulterated.

FDA  often bases its food safety regulations on a risk
assessment framework to control or prevent hazards,
prioritizing those that have a high risk or likelihood of
contaminating food. In 1969, FDA established current good
manufacturing practices (cGMP, 21 C.F.R. Part 110) to
ensure food manufacturers were maintaining clean facilities
and ensuring food safety. FDA has since updated cGMP
regulations by adding preventive, monitoring, and
recordkeeping requirements. Some foods are considered
high-risk for being more often associated with foodborne
illnesses than others due to pathogen growth conditions and
consumption habits. FDA issued specific regulations to
address unique safety issues in products such as low-acid
canned foods, acidified foods, and shell eggs, with a focus
on certain pathogens. Other food-specific regulations, such
as those for juice and seafood, are based on systems that
analyze and control specific hazards at critical control
points (HACCP). Following FSMA   enactment, FDA issued
other regulations (e.g., Preventive Controls for Human
Foods Rule; Produce Safety Rule; and Food Traceability
Rule) to reduce foodborne illnesses by preventing food
contamination, keeping necessary records to monitor
control methods for efficacy and removing potentially
contaminated food from the market.

Outbreak Response
When  preventive approaches fail, reactive approaches to
food safety, such as food recalls, can be implemented with
the appropriate traceback information. In 2011, FDA
established the Coordinated Outbreak Response and
Evaluation Network (CORE)  to be responsible for
surveillance, response, and post-response activities
associated with illness outbreaks caused by food, dietary
supplements, and cosmetics. CORE works with CDC, FDA
field offices, and state agencies to monitor emerging

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