TABLE 3.
Days incubated | Ambient air | 5% CO2 | 10% CO2 |
---|---|---|---|
No. (%) | No. (%) | No. (%) | |
Dilution 10−4 | |||
3 | 18 (75) | 21 (88) | 23 (96) |
5 | 22 (92) | 24 (100) | 23 (96) |
7 | 23 (96) | 24 (100) | 23 (96) |
10 | 24 (100) | 24 (100) | 23 (96) |
Dilution 10−5 | |||
3 | 13 (54) | 21 (88) | 21 (88) |
5 | 18 (75) | 24 (100) | 23 (96) |
7 | 20 (83) | 24 (100) | 23 (96) |
10 | 24 (100) | 24 (100) | 23 (96) |
Dilution 10−6 | |||
3 | 11 (46) | 18 (75) | 21 (88) |
5 | 17 (71) | 22 (92) | 22 (92) |
7 | 17 (71) | 22 (92) | 23 (96) |
10 | 22 (92) | 23 (96) | 23 (96) |