Table 1.
Proportion of EHV-4 nucleic acid qPCR-positive nasal swabs obtained from 90 Thoroughbreds at an auction sale
| Farm of consignment | Province of origin | Consigned horses (n) | Sample dates (August 2013) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15a | 16a | |||
| 1 | Western Cape | 13 | 0/13 | 1/8 | 0/9 | 0/9 | 0/9 | 0/9 | 0/12 | 0/5 | |
| 2 | Western Cape | 9 | 0/9 | 2/5 | 0/5 | 0/5 | 0/6 | 1/7 | 1/8 | 1/5 | |
| 3 | Western Cape | 8 | 0/8 | 0/5 | 0/5 | 0/5 | 1/6 | 1/7 | 1/7 | 1/8 | 1/5 |
| 4 | Eastern Cape | 13 | 1/13 | 0/4 | 0/4 | 0/7 | 0/7 | 3/12 | 0/4 | ||
| 5 | Eastern Cape | 5 | 0/5 | 0/1 | 0/3 | 1/3 | 2/4 | 1/5 | 0/1 | ||
| 6 | KwaZulu-Natal | 10 | 0/10 | 0/0 | 1/3 | 0/5 | 0/8 | 0/3 | |||
| 7 | KwaZulu-Natal | 26 | 0/26 | 0/16 | 0/16 | 0/17 | 0/18 | 0/19 | 1/25 | 0/9 | |
| 8 | KwaZulu-Natal | 6 | 0/6 | 0/1 | 0/6 | 0/2 | |||||
| Number (%) | 90 | 0/8 (0) | 0/53 (0) | 4/52 (7.7) | 0/50 (0) | 1/44 (2.3) | 3/59 (5.1) | 4/59 (6.8) | 7/84 (8.3) | 2/34 (5.9) | |
a = auction dates