Table 2.
Association between Cryptosporidium infection and occurrence of diarrhea in pre-weaned, post-weaned, and adult dairy cattle after a diarrhea outbreak on a farm in Jiangsu, China.
| Age | Animal group | Sample size | No. positive for Cryptosporidium (%) |
Cryptosporidium spp. |
|||||
|---|---|---|---|---|---|---|---|---|---|
| C. parvum | C. ryanae | C. bovis | C. andersoni | C. ryanae + C. bovis | C. parvum + C. bovis | ||||
| Pre-weaned | No diarrhea | 450 | 83 (18.4) | 46 | 14 | 15 | 0 | 6 | 2 |
| Moderate diarrhea | 101 | 35 (34.7) | 11 | 9 | 7 | 0 | 5 | 3 | |
| Watery diarrhea | 61 | 21 (34.4) | 16 | 4 | 0 | 0 | 1 | 0 | |
| Subtotal | 612 | 139 (22.7) | 73 | 27 | 22 | 0 | 12 | 5 | |
| Post-weaned | No diarrhea | 439 | 29 (6.6) | 2 | 10 | 5 | 2 | 7 | 3 |
| Moderate diarrhea | 46 | 9 (19.6) | 0 | 4 | 2 | 0 | 3 | 0 | |
| Watery diarrhea | 29 | 5 (17.2) | 0 | 3 | 2 | 0 | 0 | 0 | |
| Subtotal | 514 | 43 (8.4) | 2 | 17 | 9 | 2 | 10 | 3 | |
| Adults | No diarrhea | 194 | 2 (1.0) | 0 | 1 | 0 | 1 | 0 | 0 |
| Watery diarrhea | 1 | 0 (0) | 0 | 0 | 0 | 0 | 0 | 0 | |
| Subtotal | 195 | 2 (1.0) | 0 | 1 | 0 | 1 | 0 | 0 | |
| Unknown | No diarrhea | 43 | 10 (23.3) | 4 | 3 | 0 | 0 | 3 | 0 |
| Moderate diarrhea | 2 | 0 (0) | 0 | 0 | 0 | 0 | 0 | 0 | |
| Watery diarrhea | 6 | 1 (16.7) | 0 | 0 | 0 | 0 | 1 | 0 | |
| Subtotal | 51 | 11 (21.6) | 4 | 3 | 0 | 0 | 4 | 0 | |
| Total | 1372 | 195 (14.2) | 79 | 48 | 31 | 3 | 26 | 8 | |