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There are different plasmid sizes of C. difficile. The detected molecular weights range from 2.7x10 6 to 100x10 6, but plasmid sizes show no correlation with toxicity. In order to detect the toxin B level in C. difficile, clinicians extensively use cell culture assays derived from stool specimens from patients with PMC.
Pathogenic C. difficile strains produce multiple toxins. [21] The most well-characterized are enterotoxin (Clostridium difficile toxin A) and cytotoxin (Clostridium difficile toxin B), both of which may produce diarrhea and inflammation in infected people, although their relative contributions have been debated. [20]
On February 26, 2015, ACIP voted to deliver a Category A recommendation for administering MenB vaccines to persons older than 10 years who were at higher risk of meningococcal disease. On June 24, 2015, ACIP heard the arguments for recommending Pfizer and Novartis's serogroup B meningococcal vaccines for everyone in the 16-22 age group.
Clostridioides difficile toxin A (TcdA) is a toxin produced by the bacteria Clostridioides difficile, formerly known as Clostridium difficile. [1] It is similar to Clostridioides difficile Toxin B . The toxins are the main virulence factors produced by the gram positive , anaerobic, [ 2 ] Clostridioides difficile bacteria.
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]
The Clostridioides difficile TcdE Holin (TcdE Holin) Family is a group of transporters belonging to the Holin Superfamily IV. [1] A representative list of its members can be found in the Transporter Classification Database. Toxigenic strains of C. difficile produce two large toxins (TcdA and TcdB) encoded within a pathogenicity locus.
Bezlotoxumab, sold under the brand name Zinplava, is a human monoclonal antibody designed for the prevention of recurrence of Clostridioides difficile infections. [3] [4] Bezlotoxumab binds to Clostridioides difficile toxin B. [3]
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.
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