Open Access
Table 2
Seroprevalence of T. gondii infection by year in yaks on the Qinghai–Tibetan Plateau.
| Provinces | Counties | Sampling sites | 2018 |
2019 |
Average |
|||
|---|---|---|---|---|---|---|---|---|
| Positive rates% (No. positive/No. samples) | 95% CI | Positive rates% (No. positive/No. samples) | 95% CI | Positive rates% (No. positive/No. samples) | 95% CI | |||
| Qinghai | Datong | Datong Ranch | 19.79(19/96)a | 12.4–29.2 | – | – | 19.79(19/96)a | 12.4–29.2 |
| Gangcha | Qingqingcao Ranch | 5.41(4/74)cde | 1.5–13.3 | – | – | 5.41(4/74)bd | 1.5–13.3 | |
| Guinan | Laozhaxi Ranch | 3.66(3/82)de | 0.8–10.3 | 8.56(16/187)bcd | 4.1–26.2 | 7.06(19/269)cd | 4.3–10.8 | |
| Huangzhong | Slaughterhouses | 17.02(8/47)ab | 7.7–30.8 | – | – | 14.77(13/88)ab | 8.1–23.9 | |
| Fengtai Ranch | – | – | 12.20(5/41)abcd | 4.3–12.1 | ||||
| Qilian | Qilain Ranch | 4.19(7/167)de | 1.7–8.5 | – | – | 6.01(22/366)d | 3.8–9.0 | |
| Warinai Ranch | – | – | 7.54(15/199)cd | 9.3–13.4 | ||||
| Wulan | Chaidamu Ranch | 0.00(0/11)abcde | 0.0–28.5 | – | – | 8.65(18/208)bcd | 5.2–13.3 | |
| Tongpu Ranch | – | – | 9.14(18/197)abcd | 5.0–13.5 | ||||
| Total | 8.60(41/477) | 6.2–11.5 | 8.65(54/624) | 5.5–14.1 | 8.63(95/1101) | 7.0–10.5 | ||
| Tibet | Seni | Dasa Village | – | – | 8.07(13/161)bcd | 4.4–13.4 | 9.98(80/802)bc | 8.0–12.3 |
| Gaerde Ranch | – | – | 9.65(11/114)abcd | 4.9–16.6 | ||||
| Maqing Village | 12.34(19/154)abc | 7.6–18.6 | – | – | ||||
| Mufa Ranch | – | – | 5.00(5/100)d | 1.6–11.3 | ||||
| Namaqiegong Village | – | – | 15.82(25/158)a | 10.5–22.5 | ||||
| Naqu Ranch | 6.09(7/115)cde | 2.5–12.1 | – | – | ||||
| Nyainrong | Gaque Ranch | 11.72(15/128)abc | 6.7–18.6 | 9.18(9/98)abcd | 4.3–16.7 | 9.76(86/881)bc | 7.9–11.9 | |
| Payu Village | 2.34(4/171)e | 0.6–5.9 | 13.24(18/136)abc | 8.0–20.1 | ||||
| Yumaoxiong Village | 9.04(17/188)bcd | 5.4–14.1 | 14.38(23/160)ab | 9.3–20.8 | ||||
| Total | 8.20(62/756) | 6.4–10.4 | 11.22(104/927) | 9.3–13.4 | 9.86(166/1683) | 8.5–11.4 | ||
| Qinghai and Tibet | 8.35(103/1233) | 6.9–10.0 | 10.19(158/1551) | 8.7–11.8 | 9.38(261/2784) | 8.3–10.5 | ||
Note: The same lowercase letters within columns represent no significant differences between groups (p > 0.05) and different lowercase letters within columns represent significant differences between groups (p < 0.05).
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