Table 3.
Transfer from a donor surface (keyboard key) contaminated recently with bacteria (wet inoculum) or from old contamination (dry inoculum) to the fingertip of a gloved hand and when in the presence of different soiling conditions; n = 10
| Median Log10 CFUs transferred (Inter-Quartile Range) | ||||||
|---|---|---|---|---|---|---|
| Organism | Un-treated (control) glove | PHMB-treated glove | ||||
| Wet Inoculum | No soiling (DW) |
Moderate soiling (0.5% BSA) |
Heavy soiling (Blood) |
No soiling (DW) |
Moderate soiling (0.5% BSA) |
Heavy soiling (Blood) |
| MRSA | 3.15 (3.04–3.28) | 3.04 (3.00–3.46) | 3.20 (3.08–3.34) | 3.18 (3.04–3.28) | 3.11 (3.09–3.20) | 3.23 (3.20–3.32) |
| Carbapenem-resistant E.coli | 3.34 (3.23–3.46) | 3.18 (3.15–3.34) | 3.30 (3.20–3.32) | 3.00(2.95–3.08) | 3.20 (2.70–3.23) | 3.34 (3.30–3.49) |
| K. pneumoniae | 4.03 (4.00–4.17) | 4.12 (3.95–4.16)) | 4.01 (3.91–4.19) | 3.34 (3.34–3.38) | 3.41 (3.40–3.45) | 3.89 (3.78–3.96) |
| S. pyogenes | 3.93 (3.83–3.98) | 3.93 (3.89–3.97) | 3.96 (3.90–4.02) | 3.94 (3.90–3.95) | 3.95 (3.87–4.00) | 3.99 (3.97–4.07) |
| Dry Inoculum | No soiling (DW) |
Moderate soiling (0.5% BSA) |
Heavy soiling (Blood) |
No soiling (DW) |
Moderate soiling (0.5% BSA) |
Heavy soiling (Blood) |
| MRSA | 2.78 (2.65–2.90) | 2.78 (2.70–2.88) | 3.13 (2.95–3.23) | 2.73 (2.71–2.92) | 2.80 (2.71–2.80) | 3.35 (3.31–3.47) |
| Carbapenem-resistant E.coli | 2.65 (2.65–2.74) | 2.88 (2.70–2.88) | 2.81 (2.78–2.88) | 2.52 (2.52–2.65) | 2.62 (2.43–2.68) | 3.00 (2.92–3.28) |
| K. pneumoniae | 3.13 (3.19–3.34) | 3.28 (3.13–3.39) | 3.53 (3.48–3.57) | 2.65 (2.65–2.70) | 2.65 (2.60–2.65) | 2.48 (2.48–2.70) |
| S. pyogenes | 3.27 (3.19–3.34) | 3.30 (3.24–3.54) | 3.44 (3.40–3.49) | 3.13 (3.02–3.16) | 3.34 (3.29–3.39) | 3.36 (3.26–3.41) |
Note: Numbers below the detection limit (2 CFU) are expressed as <0.301 Log10 numbers