Table 1 Number of salmonella positive samples from the weekly environmental surveillance of the production line of feed mills in Sweden - before heat treatment; and distribution of positive samples and estimated share of national feed production between 1995 and 2005
| Year/Feed producing company |
No. of salmonella positive samples before heat treatment (% distribution of positive samples between companies for each year) | Estimated share of national production | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | 1997 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | Total | ||
| A +B |
36 (90%) |
22 (82%) |
45 (94%) |
20 (95%) |
17 (94%) |
21 (66%) |
7 (88%) |
19 (90%) |
187 (87%) | 75% |
| C |
4 (10%) |
5 (18%) |
2 (4%) |
1 (5%) |
1 (6%) |
7 (22%) |
0 (0%) |
2 (10%) |
22 (10%) | 15% |
| D+E 1) | - |
0 (0%) |
1 (2%) |
0 (0%) |
0 (0%) |
4 (12%) |
1 (12%) |
0 (0%) |
6 (3%) | 10% |
| Total | 40 | 27 | 48 | 21 | 18 | 32 | 8 | 21 | 215 | 100% |