Table. Average incubation period for 263K scrapie*.
| Hamster species† | Cross-species 263K |
Second passage |
Third passage |
Back passage‡ |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dpi ± SD | Titer/50 μL (1% BH) | Dpi | Titer/50 μL (1% BH) | Dpi | Titer/50 μL (1% BH) | Dpi | ||||
| Syrian | 85 | 2 x 109 | ND | ND | ND | ND | 79 ± 5 | |||
| Turkish | 91 ± 4.9 | 1 x 108.9 | 103 ± 7.2 | 1 x 106.7 | 85 ± 7.6 | 1 x 108.25 | 76 ± 0 | |||
| Djungarian | 155 ± 23.4 | 1 x 108.4 | 100 ± 9.0 | 1 x 109.6 | 99 ± 7.2 | 1 x 109.7 | 97 ± 7 | |||
| Siberian | 148 ± 26.5 | 1 x 108.3 | 117 ± 9.9 | 1 x107.75 | 114 ± 8.3 | 1 x 108.1 | 128 ± 17 | |||
| Chinese | 372 ± 29.1 | ND | 233 ± 17.9 | ND | 207 ± 15.2 | ND | 168 ± 7 | |||
| Armenian | 188 ± 10.4 | 1 x 107.35 | 156 ±4.8 | 1 x 107.75 | 145 ±7.5 | >1 x 108.5 | 145 ± 18 | |||
*Dpi, days postinoculation; ND, not done; BH, brain homogenate. †16 hamsters/species. ‡In Syrian hamster.