| Reference | Removal | Non-treatment | Total |
---|
Cork
| 236 | 264 | 11 017 | 11 517 |
Donegal
| 228 | 268 | 4810 | 5306 |
Kilkenny
| 223 | 238 | 2357 | 2818 |
Monaghan
| 518 | 733 | 2354 | 3605 |
Total
| 1205 | 1503 | 20 538 | 23 246 |
- Reference areas were areas with limited culling during the former intervention study (four area study; 1997–2002); removal areas experienced intensive, repeated proactive culling during the four area study; Non-treatment areas were farms wholly outside of any former study areas, but with registered land within the county. Herd locations were taken from the Land Parcel (LPIS) dataset. Note: Not all herds entered every model, as some herds did not have full testing records for the year of the study (e.g. not farming for full duration of the study).