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The infection rate of spotted fever group (SFG) Rickettsia in yaks.
| Rickettsia spp. | Infection Rate (%) in Each Current Area | ||||
|---|---|---|---|---|---|
| Wulan (n = 28) | Qilian (n = 30) | Haiyan (n = 59) | Gangcha (n = 105) | Total (n = 222) | |
| Total positive | 3 (10.7) | 4 (13.3) | 3 (5.1) | 15 (14.3) | 25 (11.3) |
| Negative samples | 25 (89.3) | 26 (86.7) | 56 (94.9) | 90 (85.7) | 197 (88.7) |
