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. 2018 Apr;147:50-55.
doi: 10.1016/j.mimet.2018.02.012. Epub 2018 Feb 24.

Comparison of a Newly Developed Binary Typing With Ribotyping and Multilocus Sequence Typing Methods for Clostridium Difficile

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Comparison of a Newly Developed Binary Typing With Ribotyping and Multilocus Sequence Typing Methods for Clostridium Difficile

Zhirong Li et al. J Microbiol Methods. .

Abstract

Clostridium difficile is the causative pathogen for antibiotic-related nosocomial diarrhea. For epidemiological study and identification of virulent clones, a new binary typing method was developed for C. difficile in this study. The usefulness of this newly developed optimized 10-loci binary typing method was compared with two widely used methods ribotyping and multilocus sequence typing (MLST) in 189 C. difficile samples. The binary typing, ribotyping and MLST typed the samples into 53 binary types (BTs), 26 ribotypes (RTs), and 33 MLST sequence types (STs), respectively. The typing ability of the binary method was better than that of either ribotyping or MLST expressed in Simpson Index (SI) at 0.937, 0.892 and 0.859, respectively. The ease of testing, portability and cost-effectiveness of the new binary typing would make it a useful typing alternative for outbreak investigations within healthcare facilities and epidemiological research.

Keywords: Binary typing; Clostridium difficile; Molecular typing method; PCR.

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