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Seroprevalence of bovine leukemia virus (BLV) infection in yaks in different farms in Gansu province, northwestern China.
| Region | Farm | No. tested | No. positive | Prevalence (%) |
|---|---|---|---|---|
| Tianzhu | 1 | 220 | 51 | 23.18 |
| 2 | 273 | 51 | 18.68 | |
| 3 | 231 | 44 | 19.05 | |
| 4 | 250 | 40 | 16.00 | |
|
| ||||
| Maqu | 5 | 81 | 19 | 23.46 |
| 6 | 147 | 35 | 23.81 | |
| 7 | 103 | 29 | 28.16 | |
| 8 | 133 | 32 | 24.06 | |
|
| ||||
| Luqu | 9 | 60 | 15 | 25.00 |
| 10 | 34 | 8 | 23.53 | |
| 11 | 52 | 10 | 19.23 | |
|
| ||||
| Total | 1584 | 334 | 21.09 | |
