TABLE 1.
Virus isolation and RT-PCR for pharyngeal swabsa
| Pig no. | Result on dpi:
|
||||||
|---|---|---|---|---|---|---|---|
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| 3 | + | ||||||
| 21 | + | ||||||
| 6 | − | − | |||||
| 18 | (+) | 1.1 | |||||
| 2 | − | 3.0 | |||||
| 20 | (+) | + | |||||
| 5 | − | + | − | ||||
| 17 | − | + | − | ||||
| 1 | − | − | − | ||||
| 19 | + | + | + | ||||
| 4 | − | − | − | − | |||
a
—, samples negative on both RT-PCR and virus isolation. +, samples negative on virus isolation but positive on RT-PCR using both set of primers. (+), samples positive on RT-PCR only with a primer set located in the N gene. The numbers indicate log10 PFU of virus isolated per ml of swab. These samples were also positive on RT-PCR.