Table 2.
The positive samples of spotted fever group (SFG) Rickettsia in ticks and animals in this study.
| Prefectures | Sampling sites | Altitude (m) | Number of positive samples (Infection rate %) | ||||
|---|---|---|---|---|---|---|---|
| Tick-E* | Tick-F* | Yak | Tibetan sheep | Total | |||
| Yushu | Yushu | 4,117–4,317 | 6/15 (40.0) | 20/38 (52.6) | 0/53 | 0 | 26/106 (24.5) |
| Zhiduo | 4,171.4 | 17/37 (46.0) | 0 | 0/30 | 0 | 17/67 (25.4) | |
| Zaduo | 4,290 | 0 | 0 | 0/33 | 0 | 0/33 | |
| Chenduo | 4,000 | 0 | 10/17 (58.8) | 0/29 | 0/25 | 10/71 (14.1) | |
| Nangqian | 3,640–3,920 | 0 | 13/18 (72.2) | 0/48 | 0/51 | 13/117 (11.1) | |
| Qumalai | 4,279 | 0 | 0 | 3/22 (13.6) | 1/50 (2.0) | 4/72 (1.4) | |
| Total | 23/52 (44.2) | 43/73 (58.9) | 3/215 (1.4) | 1/126 (0.8) | 70/466 (15.0) | ||
| Guoluo | Banma | 3,623–3,877 | 0 | 15/25 (60.0) | 10/78 (12.8) | 0 | 25/103 (24.3) |
| Darlag | 4,130 | 2/9 (22.2) | 0 | 0/35 | 0/51 | 2/95 (2.1) | |
| Maqin | 3,859 | 51/87 (58.6) | 10/20 (50.0) | 12/97 (12.4) | 0/132 | 73/336 (21.7) | |
| Total | 53/96 (55.2) | 25/45 (55.6) | 22/210 (10.5) | 0/183 | 100/534 (18.7) | ||
| Total | 76/148 (51.35) | 68/118 (57.6) | 25/425 (5.9) | 1/309 (0.3) | 170/1,000 (17.0) | ||
*
E, engorged ticks collected from yaks or Tibetan sheep in this study; F, free ticks on the grass.