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| {{SI}}
| | #REDIRECT[[Gastroenteritis]] |
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| :''See also [[Gastroenteritis]] and [[Diarrhea]]''
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| Bacterial gastroenteritis is an [[inflammation]] of the [[stomach]] and [[intestine]]s caused by bacteria or bacterial [[toxin]]s.
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| ==Causes==
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| Many different types of bacteria can produce the symptoms associated with bacterial gastroenteritis, including [[salmonella]], [[shigella]], [[staphylococcus]], [[Campylobacter jejuni]], [[clostridium]], [[E. coli]], [[yersinia]], and others. Some sources of the infection are improperly prepared food, reheated meat dishes, seafood, dairy, and bakery products. Each organism causes slightly different symptoms but all result in diarrhea. Colitis, inflammation of the large intestine, may also be present.
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| Risk factors are consumption of improperly prepared foods or contaminated water and travel or residence in areas of poor sanitation. The incidence is 1 in 1,000 people.
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| ==Symptoms==
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| * [[Nausea]] and [[vomiting]]
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| * [[Diarrhea]]
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| * Loss of appetite
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| * Abdominal pain
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| * Abdominal cramps
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| * Bloody stools
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| ==Signs and Tests==
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| * Stool culture positive for the organism that causes the infection
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| * White blood cells in the stool
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| * Examination of food for toxin and bacteria
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| This disease may also alter the results of the following tests:
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| * Stool [[gram stain]]
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| * [[Stool test|Fecal smear]]
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| ==Treatment==
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| The objective of treatment is to replace [[fluid]]s and [[electrolyte]]s (salt and minerals) lost by [[diarrhea]]. [[Blood transfusion]]s are rarely required.
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| [[Antibiotic]] or [[antimicrobial]] therapy is usually not indicated unless the rest of the body is affected.
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| Self-care measures to avoid [[dehydration]] include drinking electrolyte solutions to replace fluids lost by diarrhea, and eating no solid food until the diarrhea has passed. People with diarrhea, especially young children, who are unable to drink fluids due to nausea may need medical attention and [[intravenous fluid]]s. People taking [[diuretics]] ("water pills") need to be cautious with diarrhea and may need to stop taking the medication during an acute episode, as directed by the health care provider.
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| ==Prognosis==
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| With most infections, symptoms improve with fluid and electrolyte replacement within a week. There are rare cases of patients with [[renal failure]] and even death due to the infection.
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| ==Complications==
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| * Systemic infection.
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| * [[Dehydration]].
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| * [[Anemia]] (low blood counts).
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| * [[Kidney failure]] (rare).
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| * [[Arthritis]].
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| * New onset of [[irritable bowel syndrome]].
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| [[Category:Bacterial infections]]
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| [[Category:Conditions diagnosed by stool test]]
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