| Variable | Chi-square | Df | Probability | Comment |
| T. parva | 7.5921 | 2 | 0.0225 | P < 0.05 |
| Anaplasma spp. | 9.1840 | 2 | 0.0101 | P < 0.05 |
| Babesia spp. | 2.5395 | 2 | 0.2809 | P > 0.05 |
| T. brucei | 1.0215 | 2 | 0.6000 | P > 0.05 |