Table 2 Change patterns in the number of schistosomiasis infections in both humans and livestock in Eryuan County, 2012–2017
Year | Humans | Bovine | Snail infested area (hm2) | Density of living snails (per 0.1 m2) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
No. tested by immunological exams | No. positive in immunological exams | No. tested by faeces exams | No. positive in faeces exams | Infection rate (%) | No. examined | No. positive | Positive rate (%) | |||
2012 | 83 010 | 13 266 | 17 339 | 148 | 0.14 | 50 529 | 44 | 0.09 | 343.15 | 0.053 |
2013 | 76 349 | 6453 | 15 785 | 29 | 0.02 | 31 411 | 21 | 0.07 | 354.20 | 0.045 |
2014 | 46 256 | 3969 | 12 262 | 21 | 0.01 | 16 966 | 5 | 0.03 | 307.94 | 0.041 |
2015 | 55 110 | 3026 | 11 211 | 0 | 0.00 | 7208 | 0 | 0.00 | 293.55 | 0.039 |
2016 | 41 350 | 2171 | 8983 | 0 | 0.00 | 29 289 | 0 | 0.00 | 283.85 | 0.035 |
2017 | 58 116 | 3955 | 9829 | 0 | 0.00 | 30 156 | 0 | 0.00 | 285.89 | 0.039 |