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Signs and symptoms of CDI range from mild diarrhea to severe life-threatening inflammation of the colon. [16]In adults, a clinical prediction rule found the best signs to be significant diarrhea ("new onset of more than three partially formed or watery stools per 24-hour period"), recent antibiotic exposure, abdominal pain, fever (up to 40.5 °C or 105 °F), and a distinctive foul odor to the ...
Clostridioides difficile (syn. Clostridium difficile) is a bacterium known for causing serious diarrheal infections, and may also cause colon cancer. [4] [5] It is known also as C. difficile, or C. diff (/ s iː d ɪ f /), and is a Gram-positive species of spore-forming bacteria. [6]
Clostridioides difficile, also known more commonly as C. diff, accounts for 10 to 20% of antibiotic-associated diarrhea cases, because the antibiotics administered for the treatment of certain disease processes such as inflammatory colitis also inadvertently kill a large portion of the gut flora, the normal flora that is usually present within the bowel.
Often, symptoms come on slowly and can range from mild to severe. [1] Symptoms typically occur intermittently with periods of no symptoms between flares. [1] Complications may include abnormal dilation of the colon , inflammation of the eye, joints, or liver, and colon cancer. [1] [3] The cause of UC is unknown. [1]
The toxins are the main virulence factors produced by the gram positive, anaerobic, [2] Clostridioides difficile bacteria. The toxins function by damaging the intestinal mucosa and cause the symptoms of C. difficile infection, including pseudomembranous colitis. TcdA is one of the largest bacterial toxins known.
CNE is a necrotizing inflammation of the small bowel (especially the jejunum but also the ileum). Clinical results may vary from mild diarrhea to a life-threatening sequence of severe abdominal pain, vomiting (often bloody), bloody stool, ulceration of the small intestine with leakage (perforation) into the peritoneal cavity and possible death within a single day due to peritonitis.
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The study demonstrated that even though C. difficile did not produces TcdA, it still showed symptoms for the disease. [47] Furthermore, later studies have shown that a purified form of TcdB is a more lethal enterotoxin in comparison to TcdA, and also, that intestinal epithelium is severely damaged and causes an acute inflammatory response. [48]
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