Table 2.
Intra-herd prevalence of the dairy sheep and goat flock located in the non-tick-borne encephalitis virus (TBEV) risk area (Lower Saxony, Göttingen, GÖ). Individual follow-up of TBEV antibody titres detected by serum neutralization test of eight goats and four sheep within a period of three years. Titres ≥1:40 are classified as positive and negative results are indicated with ‘-’.
| Sampling Date (mm/yyyy) | 07/2017 | 12/2017 | 07/2018 | 07/2019 | 07/2020 | |
|---|---|---|---|---|---|---|
| Species | Intra-herd prevalence | |||||
| Dairy goats (n) | 14.8% (54) | 13.6% (66) | 8.3% (72) | 9.0% (71) | 9.6% (73) | |
| Dairy sheep (n) | 7.7% (39) | 2.2% (46) | 2.3% (43) | 2.8% (67) | 2.8% (71) | |
| Species | Animal ID | TBEV antibody titres | ||||
| Goat | 6244 | 1:40 | – | 1:40 | 1:40 | – |
| 6245 | – | – | – | – | 1:160 | |
| 6246 | – | 1:100 | 1:40 | – | 1:40 | |
| 6257 | 1:40 | 1:160 | 1:40 | – | – | |
| 18826 | – | – | 1:40 | 1:40 | – | |
| 18842 | – | 1:40 | – | – | – | |
| 18844 | 1:40 | – | – | – | – | |
| 18929 | 1:40 | 1:400 | – | – | 1:40 | |
| Sheep | 6354 | 1:40 | – | 1:40 | 1:40 | 1:160 |
| 18837 | – | – | 1:160 | – | 1:40 | |
| 18942 | – | 1:40 | – | 1:40 | – | |
| 18948 | 1:40 | – | – | 1:40 | – | |