City
Total swine Population (million) Calculated sample size
Individual level
Individual level
Individual level
Herd level
Herd level
Herd level
No. of positive
No. of tested
Prevalence% (95% CI: lower, upper)
No. of positive
No. of tested
Prevalence% (95% CI: lower, upper)
Lanzhou
0.43
41.44
0
90
0.00 (0.00, 4.02)
0
3
0.00 (0.00, 70.76)
Jiayuguan
0.04
3.85
0
150
0.00 (0.00, 2.43)
0
5
0.00 (0.00, 52.18)
Jinchang
0.05
4.82
0
90
0.00 (0.00, 4.02)
0
3
0.00 (0.00, 70.76)
Baiyin
0.84
80.95
0
90
0.00 (0.00, 4.02)
0
3
0.00 (0.00, 70.76)
Tianshui
0.65
62.64
0
96
0.00 (0.00, 3.77)
0
3
0.00 (0.00, 70.76)
Wuwei
1.49
143.59
1
90
1.11 (0.03, 6.04)
1
3
33.33 (0.84, 90.57)
Zhangye
0.65
62.64
2
91
2.20 (0.27, 7.71)
1
3
33.33 (0.84, 90.57)
Pingliang
0.44
42.40
0
100
0.00 (0.00, 3.62)
0
3
0.00 (0.00, 70.76)
Jiuquan
0.27
26.02
0
122
0.00 (0.00, 2.98)
0
4
0.00 (0.00, 60.24)
Qingyang
0.46
44.33
0
90
0.00 (0.00, 4.02)
0
3
0.00 (0.00, 70.76)
Dingxi
0.52
50.11
0
90
0.00 (0.00, 4.02)
0
3
0.00 (0.00, 70.76)
Longnan
0.61
58.79
0
90
0.00 ( 0.00, 4.02)
0
3
0.00 (0.00, 70.76)
Linxia
0.21
20.24
0
96
0.00 (0.00, 3.77)
0
3
0.00 (0.00, 70.76)
Gannan
0.23
22.17
0
94
0.00 (0.00, 3.85)
0
3
0.00 (0.00, 70.76)
In total
6.89
664
3
1379
0.22 (0.04, 0.63)
2
45
4.44 (0.54, 15.15)