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Table 3 Organisms identified from cultures of samples collected from the biopsy channels of gastroscopes and colonoscopes and from swab cultures of samples obtained from automated endoscope reprocessors

From: Surveillance cultures of samples obtained from biopsy channels and automated endoscope reprocessors after high-level disinfection of gastrointestinal endoscopes

Category Organism Gastroscope Colonoscope Total
  Single species Multiple species Single species Multiple species  
Organisms in the cultures of rinse samples obtained from biopsy channels
GNGN bacteria** 22 2a, b 15   39
Yeast-like bacteria 1   1   2
Klebsiella pneumoniae 1    1c 2
Acinetobacter baumanii   1b   1f 2
Enterococcus spp.   1b   2c, d 3
Comamonas testosteroni 2     2
Chryseobacterium indologenes 1     1
Sphingomonas paucimobilis 1     1
Pseudomonas putida 1     1
Viridans Streptococcus   1a    1
Stomatococcus spp.   1a    1
Prevotella bivia 1*     1
Escherichia coli    3 3c, d, f 6
Pseudomonas aeruginosa    1   1
Enterococcus faecium     1c 1
Bacteroides fragilis     1e* 1
Bacteroides vulgatus     1e* 1
Bacteroides distasonis     1e* 1
Clostridium perfringens    1*   1
Proteus mirabilis     1d 1
Total number of bacteria 36 33 69
Total number of positive cultures 32 25 57
Organisms in swab cultures of samples obtained from automated endoscope reprocessors#
GNGN bacteria** 2   1   3
Yeast-like bacteria 2     2
Moraxella osloensis 1     1
Candida glabrata 1     1
Total number of positive cultures 6 1 7
  1. *Anaerobic bacteria; the rest were cultures of aerobic bacteria.
  2. **GNGN bacteria: Glucose non fermenting Gram-negative bacteria.
  3. a, b: Cultures of samples obtained from gastroscopes colonized by multiple species.
  4. c, d, e, f: Cultures obtained from colonoscopes colonized by multiple species.
  5. #: Chiu et al. World J Gastroenterol. 2012 Apr 14;18(14):1660–3.