Table 1. SLEV levels following growth of isolated populations on DAE cells and comparisons of Vero infectious particles (p.f.u.) and viral RNA (genomes).
Strains DAE 17A-1 to -20 represent clonal populations derived from DAE 17A. Italics indicate strains chosen for further characterization.
| Strain | Vero infectious particles (log10p.f.u. ml−1) | Viral RNA (log10genomes ml−1) |
| DAE 17A | 7.11 | 8.38 |
| DAE 17A-1 | 6.90 | 8.53 |
| DAE 17A-2 | 6.11 | 8.32 |
| DAE 17A-3 | 7.39 | 8.46 |
| DAE 17A-4 | 7.55 | 8.67 |
| DAE 17A-5 | 7.53 | 8.54 |
| DAE 17A-6 | 7.66 | 8.66 |
| DAE 17A-7 | Neg | Neg |
| DAE 17A-8 | 6.75 | 8.32 |
| DAE 17A-9 | Neg | 5.64 |
| DAE 17A-10 | 7.08 | 8.49 |
| DAE 17A-11 | 7.39 | 8.68 |
| DAE 17A-12 | 6.70 | 8.36 |
| DAE 17A-13 | 6.78 | 8.56 |
| DAE 17A-14 | 7.52 | 8.72 |
| DAE 17A-15 | 3.47 | 4.95 |
| DAE 17A-16 | 7.47 | 8.63 |
| DAE 17A-17 | 7.00 | 8.49 |
| DAE 17A-18 | 2.07 | 7.25 |
| DAE 17A-19 | 7.49 | 8.69 |
| DAE 17A-20 | 7.11 | 8.75 |
Neg, negligible.