Table 1.
Surveillance for TSE in small ruminants in Switzerland, 1990-2008.
| Year | Passive surveillance | Active surveillance | |||
|---|---|---|---|---|---|
| Analysis | TSE cases | Analysis | TSE cases | ||
| Fallen stock | Slaughter | ||||
| 1981-1990 | - | 1 | - | - | - |
| 1991 | 25 | 1 | - | - | - |
| 1992 | 21 | - | - | - | - |
| 1993 | 15 | 3 | - | - | - |
| 1994 | 40 | - | - | - | - |
| 1995 | 73 | 1 | - | - | - |
| 1996 | 93 | - | - | - | - |
| 1997 | 38 | - | - | - | - |
| 1998 | 68 | - | 771 | - | - |
| 1999 | 85 | 1 | 3811 | - | - |
| 2000 | 91 | - | 4071+ 712 | - | - |
| 2001 | 66 | - | 2552 | - | - |
| 2002 | 104 | - | 42 | 493 | - |
| 2003 | 36 | - | - | 4043 | - |
| 2004 | 80 | 1 | 18075 | 180044 | 6 |
| 2005 | 23 | - | 13865 | 147734 | 2 |
| 2006 | 7 | - | - | - | - |
| 2007 | 11 | - | - | - | - |
| 2008 | 10 | - | - | - | - |
| Total | 886 | 8 | 4388 | 33230 | 8 |
Annual numbers of animals analyzed in passive and active surveillance as well as numbers of confirmed TSE cases are indicated.
1tested with Prionics Check Western
2tested with Prionics Check Western and IHC and histopathology in parallel [37]
3tested with Bio-Rad TeSeE sheep and goat ELISA IHC and histopathology in parallel [36]
4tested with Bio-Rad TeSeE sheep and goat ELISA or Prionics Check Western SR [28]
5tested with Bio-Rad TeSeE sheep and goat ELISA, Prionics Check Western SR, IHC and histopathology in parallel [28]