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Original Research

Clostridioides difficile Ribotype 027 (RT027) Outbreak Investigation Due to the Emergence of Rifampicin Resistance Using Multilocus Variable-Number Tandem Repeat Analysis (MLVA)

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Pages 3247-3254 | Published online: 17 Aug 2021

Figures & data

Table 1 Primers, Detecting the Appropriate C. difficile Regions in MLVACitation14

Table 2 Sources, Isolation Time and Age of Patients Infected with C. difficile RT 027 Strains Divided by MLVA into 5 Clusters

Figure 1 Minimum spanning tree (MST) of isolates from a hospital outbreak of C. difficile in Silesia, Southern Poland by MLVA. Each circle represents either an unique isolate or more isolates that are 100% homologous. The numbers between the circles indicate the summed tandem repeat difference (STRD) on a certain number of alleles (specified by the line style). Within the spanning tree, clonal complexes with a STRD ≤ 2 are marked in light grey (direct transmission very likely) and genetically related complexes with a STRD ≤ 10 are marked in dark grey (transmission likely).

Figure 1 Minimum spanning tree (MST) of isolates from a hospital outbreak of C. difficile in Silesia, Southern Poland by MLVA. Each circle represents either an unique isolate or more isolates that are 100% homologous. The numbers between the circles indicate the summed tandem repeat difference (STRD) on a certain number of alleles (specified by the line style). Within the spanning tree, clonal complexes with a STRD ≤ 2 are marked in light grey (direct transmission very likely) and genetically related complexes with a STRD ≤ 10 are marked in dark grey (transmission likely).

Table 3 MIC50, MIC90, Geometric Mean (GM) MIC Ranges for Antimicrobials Used for C. difficile Isolates