TABLE 2.
Mean LRs achieved by alcoholic PI and CHX for all tested M. abscessus strains and a reference S. aureus strain by quantitative carrier test (EN 14563-2008)
| Conditiona | Mean LRb (SD) |
P1c,e | P2d,e | |||
|---|---|---|---|---|---|---|
| S. aureus (ATCC 29213) | M. abscessus subsp. bolletii (BCRC 16915) | M. abscessus subsp. abscessus (ATCC 19977) | M. abscessus subsp. massiliense (TPE 101) | |||
| PI | ||||||
| Clean | 6.58 (0.25) | 5.54 (1.12) | 4.60 (1.43) | 1.17 (0.66) | 1.000 (1.000) | |
| Dirty | 2.48 (0.85) | 3.00 (1.47) | 1.97 (1.66) | 0.89 (0.50) | 0.226 (1.000) | |
| P3e | 0.019 | 0.228 | 0.435 | 1.000 | 0.001 (0.883) | |
| CHX | ||||||
| Clean | 3.16 (0.58) | 5.31 (0.64) | 3.84 (1.52) | 0.86 (0.43) | 0.117 (0.324) | |
| Dirty | 5.45 (2.16) | 2.56 (1.57) | 2.33 (1.60) | 0.39 (0.31) | 1.000 (0.224) | |
| P4 | 0.293 | 0.168 | 1.000 | 1.000 | 0.084 (0.025) | |
| P5e | 0.050 (0.100) | 1.000 (1.000) | 1.000 (1.000) | 1.000 (1.000) | ||
P3 is the P value for comparisons of clean versus dirty conditions for PI within species; P4 is the P value for comparisons of clean versus dirty conditions for CHX within species; P5 is the P value for comparisons of PI versus CHX under clean (dirty) conditions within species.
The experiments were conducted three times, and an average (mean) LR was obtained for each test condition. A mean LR of greater than 5 was considered biocidal.
P1 is the P value for interspecies comparisons under clean (dirty) conditions for each mycobacterial species in reference to S. aureus in the following order: M. abscessus subsp. bolletii, M. abscessus subsp. abscessus, and M. abscessus subsp. massiliense for PI.
P2 is the P value for interspecies comparisons under clean (dirty) conditions for each mycobacterial species in reference to S. aureus in the following order: M. abscessus subsp. bolletii, M. abscessus subsp. abscessus, and M. abscessus subsp. massiliense for CHX.
P values of <0.05 are in boldface.