TABLE 2.
Growth index and means of identification of M. avium subsp. paratuberculosis in 1,535 pooled fecal cultures in group 1
| Growth index | Corresponding PCR result | No. of samples with indicated result determined with Bactec medium | No. of positive samples determined with 7H10+MJ solid medium
|
|
|---|---|---|---|---|
| Primary culture | Subculture | |||
| Positive | Positive from 1st sample | 188 | 58 | 143 |
| Positive from 2nd sample | 8 | 4 | 5 | |
| Positive from 3rd sample | 2 | 2 | 1 | |
| Inconclusive | 11 | 0 | 0 | |
| Negative | 342 | 4a | 0 | |
| Negative | NT | 984 | 0 | NT |
| Total positive | 198a | 68 | 149 | |
a
A total of 202 samples were positive. NT, not tested.