Table 3 Results from protocol 2- residual sanitizer efficacy
From: Potent bactericidal efficacy of copper oxide impregnated non-porous solid surfaces
Countertop | Organism | CFU recovered from control samples* | Lot | CFU recovered from test samples | % reduction** |
|---|---|---|---|---|---|
Test 1- Initial | S. aureus | 1.3 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
3 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
E. aerogenes | 1.1 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
3 | 390;<1.5;<1.5;<1.5 | >99.9 | |||
MRSA | 7.5 × 105 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
P. aeruginosa | 1.3 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;90 | >99.9 | |||
E. coli 0157:H7 | 1.1 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
Test 1- Final | S. aureus | 1.1 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
3 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
E. aerogenes | 1.2 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
3 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
MRSA | 6.9 × 105 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
P. aeruginosa | 2.0x106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
E. coli 0157:H7 | 9.4 × 105 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
Test 2- Initial | S. aureus | 1.3 × 106 | 1 | 4.5;<1.5;<1.5;<1.5 | >99.9 |
2 | <1.5;<1.5;<1.5;200 | >99.9 | |||
3 | <1.5;<1.5;<1.5;240 | >99.9 | |||
E. aerogenes | 1.1 × 106 | 1 | <1.5;60;180;<1.5 | >99.9 | |
2 | 9;150;420;<1.5 | >99.9 | |||
3 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
MRSA | 7.6 × 105 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
P. aeruginosa | 1.3 × 106 | 1 | 150;<1.5;9;230 | >99.9 | |
2 | 450;570;<1.5;<1.5 | >99.9 | |||
E. coli 0157:H7 | 1.1 × 106 | 1 | <1.5;60;180;<1.5 | >99.9 | |
2 | 90;150;420;<1.5 | >99.9 | |||
Test 2- Final | S. aureus | 1.1 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 |
2 | <1.5;330;<1.5;<1.5 | >99.9 | |||
3 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
E. aerogenes | 1.2 × 106 | 1 | 380;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;320 | >99.9 | |||
3 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
MRSA | 6.9 × 105 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
P. aeruginosa | 2.0 × 106 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |||
E. coli 0157:H7 | 9.4 × 105 | 1 | <1.5;<1.5;<1.5;<1.5 | >99.9 | |
2 | <1.5;<1.5;<1.5;<1.5 | >99.9 |