Table 1: Information about the viruses used in this study.
| No. |
Virus Code |
Subtype |
Isolated From |
| 1 |
16105-1 |
HP-PRRSV |
Henan |
| 2 |
16124-1 |
HP-PRRSV |
Shandong |
| 3 |
16124-3 |
HP-PRRSV |
Shandong |
| 4 |
16124-5 |
HP-PRRSV |
Shandong |
| 5 |
16124-6 |
HP-PRRSV |
Shandong |
| 6 |
16213-1 |
NADC30-like |
Henan |
| 7 |
16213-2 |
NADC30-like |
Henan |
| 8 |
16214-1 |
HP-PRRSV |
Shanxi |
| 9 |
16214-2 |
HP-PRRSV |
Shanxi |
| 10 |
16214-3 |
HP-PRRSV |
Shanxi |
| 11 |
16214-4 |
HP-PRRSV |
Shanxi |
| 12 |
16224-1 |
HP-PRRSV |
Henan |
| 13 |
1693-7 |
HP-PRRSV |
Jiangsu |
| 14 |
16690-1 |
HP-PRRSV |
Gansu |
| 15 |
16319-21 |
HP-PRRSV |
Shanxi |
| 16 |
16319-23 |
HP-PRRSV |
Shanxi |
| 17 |
16319-25 |
HP-PRRSV |
Shanxi |
| 18 |
16319-32 |
HP-PRRSV |
Shanxi |
| 19 |
16319-33 |
HP-PRRSV |
Shanxi |
| 20 |
16319-35 |
HP-PRRSV |
Shanxi |
| 21 |
16319-37 |
HP-PRRSV |
Shanxi |
| 22 |
16346-1 |
HP-PRRSV |
Shanxi |
| 23 |
16354-2 |
HP-PRRSV |
Tianjin |
| 24 |
16354-12 |
HP-PRRSV |
Tianjin |
| 25 |
16494-1 |
HP-PRRSV |
Shanxi |
| 26 |
16494-3 |
HP-PRRSV |
Shanxi |
| 27 |
16494-4 |
HP-PRRSV |
Shanxi |
| 28 |
16628-1 |
HP-PRRSV |
Henan |
| 29 |
16756-2 |
NADC30-like |
Henan |