[PDF] Top 20 New Types of Toxin A Negative, Toxin B Positive Strains among Clostridium difficile Isolates from Asia

New Types of Toxin A Negative, Toxin B Positive Strains among Clostridium difficile Isolates from Asia

... common types of variant strains. However, in each collection new toxinotypes were also ...found among Japanese strains. Five of them were the most prevalent types of variant ... See full document

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Characterization of Toxin A Negative, Toxin B Positive Clostridium difficile Isolates from Outbreaks in Different Countries by Amplified Fragment Length Polymorphism and PCR Ribotyping

... The toxin profile of the reference strains of the present study was identical to that of previous studies (12, 34), except for the 3 reference strains (A9, A11, and ...the toxin profile of ... See full document

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Molecular Analysis of the Pathogenicity Locus and Polymorphism in the Putative Negative Regulator of Toxin Production (TcdC) among Clostridium difficile Clinical Isolates

... binary toxin were detected in seven of the eight variant strains (data not shown), including ...C. difficile M7, which was recognized as toxinotype 0 (Table ...binary toxin genes in all the ... See full document

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Molecular and Susceptibility Analysis of Toxigenic Clostridium difficile Obtained from Adult Patients Suspected of CDI in Trinidad

... culture positive isolates were positive for the C. difficile housekeep- ing gene (see Figure ...This new finding, for the isolates obtained in our small geographical location, ... See full document

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Correlation of Disease Severity with Fecal Toxin Levels in Patients with Clostridium difficile Associated Diarrhea and Distribution of PCR Ribotypes and Toxin Yields In Vitro of Corresponding Isolates

... strain types were isolated from both symptomatic patients and the hospital environment during a 4-year period, but only 4 of 17 types resulted in CDAD, sug- gesting a correlation between type and ... See full document

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Prevalence and Genetic Characterization of Toxin A Variant Strains of Clostridium difficile among Adults and Children with Diarrhea in France

... the toxin A-negative variant strains (six of nine) belong to serogroup F and were characterized by a deletion of ...these strains (including reference strain ATCC 43598 from serotype F) ... See full document

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Typing and Subtyping of Clostridium difficile Isolates by Using Multiple Locus Variable Number Tandem Repeat Analysis

... important new tool for study of the epidemiology of toxin A-negative, toxin B-positive PCR ribotype 017 isolates and PCR ribotype 027–PFGE NAP1–REA BI isolates, ... See full document

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Clinical and microbiologic characteristics of tcdA negative variant clostridium difficile infections

... of toxin A-negative/toxin B-positive (A - B + ) strains among CDI isolates varies depending on the coun- ...- B + strains has been reported to ... See full document

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Rapid and Simple Method for Detecting the Toxin B Gene of Clostridium difficile in Stool Specimens by Loop Mediated Isothermal Amplification

... ⫺ B ⫹ ) C. difficile could not be diagnosed by using only the TcdA detection kit (1, 3, 16, 17, ...C. difficile is a sensitive and specific method when cultured isolates are tested for TcdA ... See full document

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Characterization of a Toxin A Negative, Toxin B Positive Strain of Clostridium difficile Responsible for a Nosocomial Outbreak of Clostridium difficile Associated Diarrhea

... Clostridium difficile-associated diarrhea (CAD) is a very common nosocomial infection that contributes significantly to patient morbidity and mortality as well as to the cost of ...Previously, ... See full document

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Yield of Stool Culture with Isolate Toxin Testing versus a Two Step Algorithm Including Stool Toxin Testing for Detection of Toxigenic Clostridium difficile

... 1978, Clostridium difficile has emerged as the predominant cause of antibiotic-associated co- litis and the leading cause of diarrhea in hospitalized patients ...(4). Strains of C. difficile ... See full document

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Identification of Toxin A Negative, Toxin B Positive Clostridium difficile by PCR

... Toxigenic strains of Clostridium difficile have been reported to produce both toxins A and B nearly always, and nontoxigenic strains have been reported to produce neither of these ... See full document

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International Typing Study of Toxin A Negative, Toxin B Positive Clostridium difficile Variants

... isolated from C. difficile isolates as previously described ...REA types in our clinical collection. New isolates which showed ⱕ6 band differences (similarity index, ⬎90%) ... See full document

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Safety and Accuracy of Matrix Assisted Laser Desorption Ionization–Time of Flight Mass Spectrometry for Identification of Highly Pathogenic Organisms

... bacterial strains nonviable; ...one B. anthracis strain and two B. thuringiensis strains, survived tube extrac- tion, but the extracts were rendered nonviable following the addition of a ... See full document

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Comparison of BD GeneOhm Cdiff Real Time PCR Assay with a Two Step Algorithm and a Toxin A/B Enzyme Linked Immunosorbent Assay for Diagnosis of Toxigenic Clostridium difficile Infection

... of toxin that are below the detection limits of toxin ELISA or cytotoxin neutralization ...C. difficile spores in the hospital setting, because they test negative by conventional methods and ... See full document

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Is there a relationship between the presence of the binary toxin genes in Clostridium difficile strains and the severity of Clostridium difficile infection (CDI)?

... binary toxin genes in Clostridium difficile strains and the severity of Clostridium difficile infection (CDI)? European Journal of Clinical Microbiology and Infectious Diseases, ... See full document

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Comparison of Simplexa Universal Direct PCR with Cytotoxicity Assay for Diagnosis of Clostridium difficile Infection: Performance, Cost, and Correlation with Disease

... than toxin assays and may require purchase of expensive equipment ...savings from adoption of PCR were sought for the ...avoidance from a same-day diagnosis would outweigh the costs of PCR ... See full document

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Genome Characterization of a Novel Binary Toxin-Positive Strain of Clostridium difficile and Comparison with the Epidemic 027 and 078 Strains

... C. difficile are TcdA and TcdB, which are generally encoded on a ...C. difficile strains also express the binary toxin (CDT) that is encoded on a locus (CdtLoc) physically separated ... See full document

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Genomic Epidemiology of a Protracted Hospital Outbreak Caused by a Toxin A Negative Clostridium difficile Sublineage PCR Ribotype 017 Strain in London, England

... distinguishable from haplotype A by 5 ...24) isolates from UHL ...samples from the three inner London hospitals (GOSH, Royal Free, and Charing ... See full document

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Identification of toxigenic Clostridium difficile strains by using a toxin A gene specific probe

... A 4.5-kilobase PstI fragment encoding part of the toxin A gene was isolated and used as a DNA probe in colony hybridization studies with 58 toxigenic and 17 nontoxigenic Clostridium diff[r] ... See full document

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