Table 4.
Presence of imported cattle in Scottish cattle herds subject to routine surveillance by bTB case type from 2002 to 2009
| |
Case Type |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Slaughter | Confirmed positive RHT | Unconfirmed positive RHT | Unconfirmed inconclusive RHT | Negative RHT | ||||||
| Presence of high risk imports: |
N |
% |
N |
% |
N |
% |
N |
% |
N |
% |
| On test date |
33 |
71.7 |
44 |
72.1 |
71 |
54.6 |
521 |
53.3 |
8110 |
35.2 |
| Four years prior |
36 |
78.2 |
50 |
81.9 |
94 |
72.3 |
661 |
67.6 |
11492 |
49.9 |
| All years prior |
40 |
87.0 |
50 |
81.9 |
99 |
76.2 |
709 |
72.5 |
12664 |
55.0 |
| Total matched herds | 46 | 100 | 61 | 100 | 130 | 100 | 980 | 100 | 23010 | 100 |
The number and percentage of herds with imported cattle is shown. The movement history is sequentially expanded from cattle present on the test date to all cattle present up to 4 years prior to the test date and all cattle present in all years prior since inception of the CTS database in 1996.