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Table 1 Reduction in bacterial burden after 1 h of contact with Copper Armour™ as compared to control surfaces
| Microorganism | Batch | Inoculum (cfu) | Number of cfu recovered per sample * | Reduction (%) ** | |
|---|---|---|---|---|---|
| Control | Copper ArmourTm | ||||
| S. aureus | 1 | 4.3 × 107 | 1.2 × 106; 3.0 × 106; 1.8 × 106; 1.9 × 106; 3.1 × 106 | < 1;< 1;< 1;< 1;< 1 | > 99.9 |
| 2 | 1.5 × 107 | 1.4 × 106; 1.1 × 106; 1.1 × 106; 2.0 × 106; 1.2 × 106 | < 1;< 1;< 1;< 1;< 1 | > 99.9 | |
| P. aeruginosa | 1 | 1.6 × 108 | 4.4 × 107; 2.1 × 107; 7.2 × 106; 4.4 × 107; 9.3 × 106 | < 1;< 1;< 1;< 1;< 1 | > 99.9 |
| 2 | 1.8 × 108 | 1.1 × 107; 2.8 × 107; 1.2 × 107; 1.0 × 107; 1.1 × 107 | < 1;< 1;< 1;< 1;< 1 | > 99.9 | |
| E. coli O157:H7 | 1 | 1.9 × 107 | 8.1 × 105; 4.3 × 106; 4.1 × 106; 5.4 × 106; 9.6 × 105 | < 1;< 1;< 1;< 1;< 1 | > 99.9 |
| 2 | 2.4 × 107 | 5.3 × 106; 3.8 × 106; 2.4 × 106; 2.5 × 106; 7.9 × 105 | < 1;< 1;< 1;< 1;< 1 | > 99.9 | |
| L. monocytogenes | 1 | 3.2 × 107 | 7.2 × 106; 8.7 × 106; 9.4 × 106; 7.3 × 106; 6.3 × 106 | < 1;< 1;< 1;< 1;< 1 | > 99.9 |
| 2 | 1.6 × 107 | 9.7 × 106; 8.0 × 106; 7.3 × 106; 7.7 × 106; 7.8 × 106 | < 1;< 1;< 1;< 1;< 1 | > 99.9 | |
