Skin flora ≥20 CFU | Waterborne flora ≥20 CFU | ||||
No. of duodenoscopes | Quantity range | No. of duodenoscopes | Quantity range | ||
Bacillus spp. | 5 | 40–100 CFU | Stenotrophomonas maltophilia | 3 | 100 - >100 CFU |
Micrococcus luteus | 5 | 100 CFU | Acinetobacter spp. | 2 | 80 and 100 CFU |
Staphylococcus epidermidis | 4 | 50–100 CFU | Agrobacterium radiobacter | 2 | 20 and 100 CFU |
Kocuria spp. | 2 | 25 and 100 CFU | Paracoccus yeeii | 2 | 30 and 100 CFU |
Staphylococcus hominis | 2 | 25 and 100 CFU | Achromobacter xylosoxidans | 1 | 100 CFU |
Staphylococcus warneri | 2 | 50 and 80 CFU | Alternaria spp. | 1 | >100 CFU |
Kocuria rhizophila | 1 | >100 CFU | Pseudomonas monteilii | 1 | 100 CFU |
Micrococcus spp. | 1 | 30 CFU | Pseudomonas putida | 1 | 100 CFU |
Staphylococcus auricularis | 1 | >100 CFU | Sphingomonas paucimobilis | 1 | 100 CFU |
Staphylococcus spp. (CNS) | 1 | 60 CFU | Rhizobium spp. or Sphingobium spp. | 1 | >100 CFU |
CFU, colony forming units; CNS, coagulase - negative staphylococci .