Antibiotic Resistance and Food Safety
While many foodborne infections are mild and do not require treatment, antibiotics can be lifesaving in severe cases. Antibiotic resistance compromises our ability to treat these infections and is a serious threat to public health.
Salmonella and Campylobacter, two of the many bacteria commonly transmitted through food, cause an estimated 410,000 antibiotic-resistant infections in the United States each year.1
This webpage provides an overview of antibiotic resistance, how it connects to food safety, and what you can do to protect yourself and others from foodborne illness.
- Antibiotics are among the most commonly prescribed drugs used in human medicine.
- Antibiotic resistance is spread through the resistant strains of bacteria from person to person, or from the natural environment, including the foods we eat.
- The germs that contaminate food can be resistant because of the use of antibiotics in people and in food animals.
Overview of Antibiotic Resistance
Antibiotics are powerful tools for fighting illness and disease, but overuse has helped create bacteria that are outliving the drugs used to treat them.
Antibiotic resistance is the ability of microbes (bacteria, viruses, fungi and parasites) to resist the effects of drugs. That means germs are not killed and their growth is not stopped.
The use of antibiotics is the single most important factor leading to antibiotic resistance around the world. Resistant bacteria are more common in settings where antibiotics are frequently used: healthcare settings, the community, and food animal production.
Efforts to prevent resistant infections include immunization, infection control, antibiotic stewardship (meaning good antibiotic prescribing practices), reducing spread from one person to another, and protecting the food supply. Learn more at the CDC’s Antibiotic / Antimicrobial Resistance web site.
Use of antibiotics on the farm helps to produce antibiotic–resistant germs. All animals carry bacteria in their intestines. Giving antibiotics to animals will kill most bacteria, but resistant bacteria can survive and multiply. Click here to view an infographic on antibiotic resistance and the farm.
When food animals are slaughtered and processed, these bacteria can contaminate the meat or other animal products. These bacteria can also get into the environment and may spread to fruits, vegetables or other produce that is irrigated with contaminated water. People can get exposed to resistant bacteria from animals when they:
- Handle or eat meat or produce contaminated with resistant bacteria; or
- Come into contact with animal poop
Food can get contaminated whether the bacteria are resistant to antibiotics or not. Some resistant bacteria are transmitted to people through foods.
This is important because antibiotic resistant infections from common foodborne germs, such as Salmonella, can cause more severe health outcomes than infections that are not resistant to antibiotics2.
- Take antibiotics only when needed.
- Understand the importance and seriousness of antibiotic-resistant infections linked to contaminated food.
- Know who is most at risk for infection: Young children, pregnant women, older adults, and people with weakened immune systems.
- Follow simple Food Safety Tips
- Report suspected outbreaks of illness from food to your local health department.
- Don’t prepare food for others if you have diarrhea or vomiting. Be especially careful preparing food for children, pregnant women, those in poor health, and older adults.
- Review CDC’s Traveler’s Health recommendations when preparing to travel.
Preventing the spread of foodborne infections from resistant bacteria is not easy. The CDC works closely with a number of partners to address this important issue, including federal agencies, state and local health departments, the food industry, healthcare providers, and academia.
You can learn more about Antibiotic Resistance and Food Safety from the following resources:
- Antibiotic Resistance and Food Animals
- NARMS – Tracking Trends in Resistance
- Antibiotic Resistance Solutions Initiative
- Medscape: Clinical Impact of Antibiotic-Resistant Salmonella
- FDA’s Strategy on Antimicrobial Resistance
You can learn more about Antibiotics and Healthcare from the following resources:
You can get state- and city-specific fact sheets describing CDC’s key investments to combat antibiotic resistance with this online resource:
- CDC. Antibiotic Resistance Threats in the United States, 2013. Atlanta, GA: U.S Department of Health and Human Services, CDC. 2013; p.7, 36-7.
- Krueger AL, Greene SA, Barzilay EJ, et. al. Clinical outcomes of nalidixic acid, ceftriaxone, and multidrug resistant nontyphoidal Salmonella infections compared with pansusceptible infections in FoodNet sites, 2006-2008. Foodborne Pathog Dis. 2014; 11(5): 335-41.
- Page last reviewed: October 28, 2015
- Page last updated: November 8, 2017
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