Table 2.
Prevalence and risk factors associated with Cryptosporidium infection in pigs in Shaanxi province, China
| Factor | Category | No. examined | No. positive (%) | C. suis (%) | C. scrofarum (%) |
|---|---|---|---|---|---|
| Season | |||||
| Spring | 148 | 3 (2.0) | 3 (2.0) | 0 | |
| Summer | 404 | 9 (2.2) | 9 (2.2) | 0 | |
| Autumn | 438 | 26 (5.9) | 24 (5.5) | 2 (0.46) | |
| Winter | 347 | 6 (1.7) | 6 (1.7) | 0 | |
| Age | |||||
| 3 weeks-1 month | 252 | 7 (2.8) | 7 (2.8) | 0 | |
| 1-3 months | 358 | 27 (7.5) | 27 (7.5) | 0 | |
| 3-6 months | 417 | 6 (1.4) | 5 (1.2) | 1 (0.24) | |
| > 6 months | 310 | 4 (1.3) | 3 (0.97) | 1 (0.32) | |
| Location | |||||
| Ankang | 76 | 0 | 0 | 0 | |
| Wugong | 187 | 27 (14.4) | 26 (13.9) | 1 (0.53) | |
| Wuquan | 185 | 5 (2.7) | 4 (2.2) | 1 (0.54) | |
| Yangling | 448 | 5 (1.1) | 5 (1.1) | 0 | |
| Xianyang | 92 | 0 | 0 | 0 | |
| Meixian | 121 | 3 (2.5) | 3 (2.5) | 0 | |
| Tongchuan | 124 | 3 (2.4) | 3 (2.4) | 0 | |
| Xi’an | 104 | 1 (0.96) | 1 (0.96) | 0 | |
| Total | 1,337 | 44 (3.3) | 42 (3.1) | 2 (0.15) |