Skip to main content

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

From: Effect of poly-hexamethylene biguanide hydrochloride (PHMB) treated non-sterile medical gloves upon the transmission of Streptococcus pyogenes, carbapenem-resistant E. coli, MRSA and Klebsiella pneumoniae from contact surfaces

  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)
  1. Note: Numbers below the detection limit (2 CFU) are expressed as <0.301 Log10 numbers