Table 4.
Analysis of the influence of altitude on the seroprevalence of the Neospora caninum IgG and IgM antibodies and distribution of toxoplasmosis and neosporosis in the QTPA.
| Animal | Antibody | 2,000–3,000 m | 3,000–4,000 m | 4,000–5,000 m | P-value | |||
|---|---|---|---|---|---|---|---|---|
| Tested | Positive (%) | Tested | Positive (%) | Tested | Positive (%) | |||
| Tibetan sheep | IgG | 155 | 11 (7.1) | 747 | 103 (13.8) | 0 | – | 0.0403 |
| IgM | 67 (43.2) | 363 (48.6) | – | 0.4631 | ||||
| Yak | IgG | 319 | 2 (0.6) | 257 | 0 | 216 | 2 (0.9) | 0.3427 |
| IgM | 166 (52.0) | 50 (19.5) | 155 (71.8) | <0.0001 | ||||
| Cow | IgG | 496 | 10 (2.0) | 0 | – | 0 | – | – |
| IgM | 332 (66.9) | – | – | – | ||||
| Pig | IgG | 456 | 441 (96.7) | 0 | – | 0 | – | – |
| IgM | 168 (36.8) | – | – | – | ||||
| Cattle | IgG | 401 | 0 | 0 | – | 50 | 0 | – |
| IgM | 78 (19.5) | – | 10 (20.0) | 0.9397 | ||||
| Horse | IgG | 40 | 0 | 289 | 1 (0.3) | 60 | 2 (3.3) | 0.0517 |
| IgM | 39 (97.5) | 259 (89.6) | 59 (98.3) | 0.8645 | ||||
| Chicken | IgG | 210 | 90 (42.9) | 0 | – | 0 | – | – |
| IgM | 104 (49.5) | – | – | – | ||||
| Camel | IgG | 0 | – | 0 | – | 49 | 7 (14.3) | – |
| Donkey | IgG | 37 | 36 (97.3) | 0 | – | 0 | – | – |
–, not tested; %, prevalence; n, no significant difference.