Table 4.
PCR results for buffy coats from calves inoculated with active cultures
| Inoculum | Calf | d.p.i. |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 3 | 5 | 7 | 10 | 14 | 17 | 24 | 28 | 35 | 38 | 42 | ||
| DH82* | A31 | −† | − | NT‡ | − | − | − | − | − | − | − | − | − |
| A32 | − | − | NT | − | − | − | − | − | − | − | − | − | |
| Arkansas | A33 | − | +§ | NA‖ | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| A34 | − | − | − | − | + | + | + | − | − | − | − | + | |
| St Vincent | A35 | − | − | + | − | − | + | + | + | + | + | − | + |
| A36 | − | − | − | NA | NA | NA | NA | NA | NA | NA | NA | NA | |
| 91HE17 | A37 | − | − | + | + | − | − | − | + | + | + | + | − |
| A38 | − | − | − | − | − | NA | NA | NA | NA | NA | NA | NA | |
*
Control animals inoculated with uninfected DH82 cells.
†
−, Negative: pathogen not detected.
‡
NT, Not tested.
§
+, Positive: pathogen detected.
‖
NA, Not applicable due to calf mortality.