(Infection; Salmonella Enterica; Food Poisoning)
Definition
Definition
Salmonellosis is an infection with bacteria called salmonella. Salmonella can grow in a variety of places such as water, raw meat, seafood, certain pets, and eggs.
Causes
Causes
Salmonellosis is caused by ingestion of a strain of bacteria called salmonella. After the bacteria are ingested, within 6-48 hours they will pass through the stomach to the intestine where inflammation occurs and spreads.
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Risk Factors
Risk Factors
Factors that increase your chance of salmonellosis include:
- Eating raw or undercooked meat, poultry, eggs, fish, or seafood
- Eating unpasteurized dairy products
- Eating other contaminated foods
- Drinking contaminated water
- Handling reptiles, especially turtles
- Taking antibiotics
- A compromised immune system, such as in:
- Elderly persons
- Infants
- People with HIV/AIDS
- People with low stomach acidity, such as those who take medication that reduces stomach acid
Symptoms
Diagnosis
Diagnosis
Your doctor will ask about your symptoms and medical history. A physical exam will be done. Your doctor may test your stool or blood to confirm presence of the bacteria
Treatment
Treatment
Over-the-counter medications or oral rehydration solutions may be used to treat the symptoms of salmonellosis. The symptoms will usually improve on their own within 2-5 days. If symptoms are severe, talk with your doctor about the best treatment plan for you. Treatment options include the following:
- Rehydration therapy— Oral or IV fluid replacement is needed; electrolytes may also be added to the solution.
- Acetaminophen or ibuprofen—Over-the-counter pain relievers may be used to reduce fever or treat headaches and other pain.
- Antibiotics—These are required only in severe cases where blood infection may occur. Antibiotic use in non-severe cases does not improve a person’s outcome. It may cause the bacteria to stay longer in your system.
Prevention
Prevention
To help reduce your chance of salmonellosis:
- Frequently wash hands and surfaces.
- Wash hands and cutting boards with hot soapy water before and after handling raw foods.
- Wash
utensils thoroughly
after
using them on
raw meats, fish, or poultry.
- Do not use the same cutting boards for raw meats and raw vegetables.
- Do not drink unpasteurized milk.
- Drink bottled or purified water when traveling.
- Cook all foods to appropriate temperatures.
- Place foods in the refrigerator promptly.
- Wash hands after handling reptiles.
- Certain medications, like those to reduce stomach acid, may increase your risk for salmonellosis. Talk to your doctor about this risk.
RESOURCES:
US Food and Drug Administration http://www.fda.gov
CANADIAN RESOURCES:
Public Health Agency of Canada http://www.phac-aspc.gc.ca
References:
Centers for Disease Control and Prevention (CDC). Use of a self-assessment questionnaire for food safety education in the home kitchen—Los Angeles County, California, 2006-2008. MMWR. 2010;59(34):1098-101.
Edwards BH. Salmonella and shigella species. Clin Lab Med. 1999;19(3):469-487.
Heymann D. Salmonellosis. In: American Public Health Association. Control of Communicable Diseases Manual. 2004;469-473.
Koningstein M, Simonsen J, Helms M, Molbak K. The interaction between prior antimicrobial drug exposure and resistance in human Salmonella infections. J Antimicrob Chemother. 2010;65(8):1819-1825.
Salmonellosis. Centers for Disease Control and Prevention website. Available at:
http://www.cdc.gov/salmonella
Updated June 27, 2013. Accessed June 19, 2014.
Nontyphoidal salmonellosis. EBSCO DynaMed website. Available at:
http://www.ebscohost.com/dynamed
Updated January 16, 2014. Accessed June 19, 2014.
Last Updated: 5/11/2013