Table 4 Antibody seroprevalence of elephants throughout Thailand (n = 994) between 2010 and 2015 based on an EEHV1A glycoprotein B protein antigen specific ELISA, and the proportion of samples testing positive or negative relative to potential EEHV risk factors
Potential risk factors | Positivea | Negative |
|---|---|---|
Sex | ||
Female (n = 678) | 273 (40.2%) | 405 (59.7%) |
Male (n = 316) | 147 (46.5%) | 169 (53.4%) |
Age category | ||
< 11 years (n = 73) | 32 (43.8%) | 41 (56.2%) |
11–50 years (n = 797) | 331 (41.5%) | 466 (58.5%) |
> 50 years (n = 124) | 57 (45.9%) | 67 (54.0%) |
Management type | ||
Extensive (n = 505) | 238 (47.1%) | 267 (52.9%) |
Intensive (n = 489) | 182 (37.2%) | 307 (62.8%) |
Region | ||
Central (n = 76) | 17 (22.4%) | 59 (77.6%) |
East (n = 207) | 78 (37.7%) | 129 (62.3%) |
North (n = 435) | 215 (49.4%) | 220 (50.6%) |
Northeast (n = 62) | 21 (33.9%) | 41 (66.1%) |
South (n = 82) | 36 (43.9%) | 46 (56.1%) |
West (n = 132) | 53 (40.2%) | 79 (59.8%) |
Camp clusterb | ||
< 10 (n = 19) | 11 (57.9%) | 8 (42.1%) |
10–50 (n = 372) | 164 (44%) | 208 (55.9%) |
> 50 (n = 603) | 245 (40.6%) | 358 (59.4%) |
Border contact | ||
Yes (n = 77) | 25 (32.5%) | 52 (67.5%) |
No (n = 917) | 395 (43.0%) | 522 (57.0%) |
Evaluation period | ||
Apr-Oct (n = 824) | 337 (40.9%) | 487 (59%) |
Nov-Mar (n = 179) | 83 (48.8%) | 87 (51.2%) |