TABLE 3.
Recovery of anaerobic microorganisms from three swab systems stored at room temperature
| Organism | Swab system | No. (%) of CFU recovered at:
|
|||
|---|---|---|---|---|---|
| 0 h | 6 h | 24 h | 48 h | ||
| P. anaerobius | MaxV | 1.6 × 106 | 8.6 × 105 (54) | 1.2 × 105 (8) | 1.1 × 104 (0.7) |
| ESwab | 6.6 × 106 | 3.8 × 106 (58) | 1.2 × 106 (18) | 1.2 × 105 (2) | |
| RBS | 2.2 × 106 | 9.4 × 104 (4) | No growth | No growth | |
| B. fragilis | MaxV | 4.3 × 106 | 4.4 × 106 (102) | 3.9 × 106 (91) | 2.9 × 106 (67) |
| ESwab | 2.8 × 107 | 1.6 × 107 (57) | 6.5 × 108 (2,320) | 1.8 × 107 (64) | |
| RBS | 8.4 × 106 | 7.6 × 106 (91) | 5.8 × 106 (69) | 3.2 × 106 (38) | |
| F. nucleatum | MaxV | 1.9 × 106 | 4.7 × 106 (247) | 2.7 × 105 (14) | 3.6 × 104 (2) |
| ESwab | 1.5 × 107 | 1.2 × 107 (80) | 3.7 × 106 (25) | 8.0 × 104 (0.5) | |
| RBS | 6.0 × 106 | 2.5 × 106 (42) | 2.4 × 105 (4) | 9.0 × 103 (0.2) | |
| P. acnes | MaxV | 5.0 × 106 | 1.1 × 106 (22) | 4.8 × 106 (96) | 5.6 × 106 (112) |
| ESwab | 7.0 × 106 | 8.9 × 106 (127) | 8.3 × 106 (119) | 1.4 × 107 (200) | |
| RBS | 1.6 × 106 | 1.1 × 106 (69) | 3.7 × 106 (231) | 1.8 × 106 (113) | |
| P. melaninogenica | MaxV | 6.6 × 105 | 1.0 × 106 (152) | No growth | No growth |
| ESwab | 2.5 × 106 | 2.1 × 106 (84) | No growth | No growth | |
| RBS | 1.5 × 106 | 6.2 × 105 (41) | No growth | No growth | |