• Otakar Nyc, Renata Tejkalova, Zdenek Kriz, Filip Ruzicka, Lubos Kubicek, Jana Matejkova, Ed Kuijper, and Marcela Krutova.
• 1 Department of Medical Microbiology, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital , Praha, Czech Republic .
• Microb. Drug Resist. 2017 Jul 1; 23 (5): 609-615.

AimTo perform a retrospective analysis of the high occurrence of Clostridium difficile infection in the surgical department of a Czech tertiary care hospital and to identify weaknesses in C. difficile infection (CDI) prevention and control policies.MethodsClinical and epidemiological data on eleven CDI cases were collected. C. difficile isolates were characterized by capillary electrophoresis ribotyping, multilocus variable tandem repeat analysis (MLVA), gyrA gene fragment sequencing, and erm(B) fragment PCR amplification. Antibiotic susceptibility to metronidazole, vancomycin, ciprofloxacin, moxifloxacin, and clindamycin was tested.FindingsEleven CDI cases were caused by C. difficile PCR ribotype 001 strains. These strains revealed two different MLVA profiles with 11 tandem repeat differences. All isolates were susceptible to metronidazole and vancomycin and resistant to ciprofloxacin (MIC ≥32 mg/L), moxifloxacin (MIC ≥32 mg/L), and clindamycin (MIC ≥256 mg/L). All isolates revealed amino acid substitution Thr82Ile, in the GyrA and were erm(B) negative.ConclusionTwo fluoroquinolone and clindamycin-resistant C. difficile PCR ribotype 001 strain clusters occurred at one of the surgical departments of a tertiary care hospital. Ineffective decontamination with suboptimal concentration and time of exposure of sporicidal disinfectants may have resulted in C. difficile transmission.

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