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PubMed1996

Clostridium difficile acquisition rate and its role in nosocomial diarrhoea at a university hospital in Turkey.

Infection with Clostridium difficile can present with various clinical pictures ranging from an asymptomatic carrier state to pseudomembranous colitis and plays an important part in the etiology of nosocomial diarrhoea. To identify risk factors for C. difficile colonization and diarrhoea in hospitalized subjects, patients admitted to a general medicine ward at Marmara University hospital during a one year period were entered into the study. Of the 202 patients, nosocomial diarrhoea developed in 45 (22.3%). Fourteen patients (6.9%) were colonized with C. difficile during their hospitalization period. Ten of the colonized patients (71.4%) developed diarrhoea and were found to be positive by toxin assay. Pseudomembranous colitis was confirmed endoscopically in 3 of the patients with diarrhoea. Administration of beta lactam agents such as ampicillin and cephalosporins; gastrointestinal manipulations and admission to the intensive care unit were found as major risk factors for C. difficile colonization.

Adult↗
PubMed2001

Performance of two rapid, single-use immunoassays for the detection of Clostridium difficile toxin A.

Two rapid, single-use immunoassays for C. difficile toxin A, the Clearview C. DIFF A (Wampole Laboratories, Cranbury, N.J.) and the ImmunoCard Toxin A assays (Meridian Diagnostics Inc., Cincinnati, Ohio) were compared to the cytotoxin assay for their ability to detect C. difficile toxin in fecal specimens. A total of 537 specimens were tested and 47 (8.8%) were positive by the cytotoxin assay. The sensitivity, specificity, positive predictive value, and negative predictive value of the toxin A assays were as follows: 70.2% (95% CI, 57.1 to 83.3), 98.8% (95% CI, 97.8 to 99.8), 84.6% (95% CI, 73.3 to 95.9), and 97.2% (95% CI, 95.7 to 98.6) respectively for the Clearview assay; and 74.5% (95% CI, 62.0 to 86.9), 99.0% (95% CI, 98.1 to 99.9), 87.5% (95% CI, 77.3 to 97.8), and 97.6% (95% CI, 96.2 to 98.9) respectively for the ImmunoCard assay. Both toxin A assays are less sensitive than the cytotoxin assay, however, these assays offer a rapid and easy-to-perform test that may be used in conjunction with the cytotoxin assay for laboratory confirmation of C. difficile-associated disease.

Bacterial Toxins↗
PubMed1998

The epidemiology and typing of Clostridium difficile.

Clostridium difficile is normally a harmless environmental bacterium but, under certain circumstances, it can cause hospital outbreaks of disease. To understand the disease epidemiology, outbreaks have been investigated by many different methods. The phenotypic and genotypic approaches to typing are reviewed here and the epidemiology of C. difficile-associated disease is elucidated in light of recent information.

Clostridioides difficile↗
PubMed2005

Isolation and characterization of temperate bacteriophages of Clostridium difficile.

The lack of information on bacteriophages of Clostridium difficile prompted this study. Three of 56 clinical C. difficile isolates yielded double-stranded DNA phages phiC2, phiC5, phiC6, and phiC8 upon induction. Superinfection and DNA analyses revealed relatedness between the phages, while partial sequencing of phiC2 showed nucleotide homology to the sequenced C. difficile strain CD630.

Animals↗
PubMed1993

[Susceptibility of Clostridium difficile strains to teicoplanin and ramoplanin].

The in vitro activity of teicoplanin and ramoplanin against 113 Clostridium difficile strains isolated from different origins was determined. The minimum inhibitory concentrations (MICs) of antibiotics were determined by the agar dilution method. MIC of teicoplanin and ramoplanin were twofold lower for Clostridium difficile strains isolated from patient with pseudomembranous colitis. No correlation between the origin of the strains toxigenicity and susceptibility to teicoplanin and ramoplanin was observed. Our result indicate that teicoplanin and ramoplanin are potentially effective alternative antibiotics for treatment of infections caused by Clostridium difficile.

Anti-Bacterial Agents↗