Table 4.
Statistical analysis of the distribution of rNP I-ELISA PP values in RVFV-free subpopulations from RVF-endemic and non-endemic countries.
| Species/Origin | Shapiro-Wilk Test 1 | Dunn’s Test 2 | Mean/Median PP 3 |
SD 4/(IQR) 5 PP |
Range PP |
|---|---|---|---|---|---|
| VNT-negative sheep sera | |||||
| RVF-endemic countries | <0.001 | <0.001 | 9.3/8.2 | 4.7/(6.4–10.6) | 1.8–49.2 |
| RVF-free countries | <0.001 | 12.6/11.3 | 7.3/(8.4–14.7) | 3.9–75.8 | |
| VNT-negative goat sera | |||||
| RVF-endemic countries | <0.001 | <0.001 | 9.5/8.2 | 4.9/(6.6–10.8) | 2.3–45.2 |
| RVF-free countries | <0.001 | 12.2/11.8 | 5.2/(8.5–14.8) | 4.4–69.2 | |
| VNT-negative bovine sera | |||||
| RVF-endemic countries | <0.001 | <0.001 | 11.4/9.7 | 6.5/(7.1–13.8) | 3.3–76.0 |
| RVF-free countries | <0.001 | 15.2/14.5 | 6.2/(11.5–17.8) | 4.9–68.0 |
1 Shapiro–Wilk test for normality; 2 Mann–Whitney U-test Dunn’s non-parametric analysis of variance to assess difference between means of I-ELISA PP values in subpopulations tested; 3 ELISA percent positivity; 4 Standard deviation; 5 Interquartile range.