Table 1.
Mean survival time of tg338 reporter mice inoculated with spleen material from tg338 mice infected with L-BSE or C-BSE.
tissue | Dilution | L-BSE | C-BSE | ||
---|---|---|---|---|---|
n/n0 | Mean survival time* (days ± sem) | n/n0 | Mean survival time* (days ± sem) | ||
spleen | 1/1 | 6/6 | 144 ± 2‡ | 4/4 | 229 ± 4§ |
1/1 | 6/6 | 142 ± 2‡ | 6/6 | 138 ± 1 | |
10-4 | 6/6 | na | 6/6 | 176 ± 3 | |
brain | 10-5 | 6/6 | 261 ± 16 | 6/6 | 217 ± 9§ |
10-6 | 6/6 | 281; 307 | 2/6 | 286;534 | |
10-7 | 0/6 | >660 | 0/6 | >660 |
*Mean survival time of tg338 reporter mice inoculated with spleen material from tg338 infected with L-BSE or C-BSE.
‡,§For pair comparison: this indicates that spleens of L-BSE infected animal are 1000 to 10000-fold more infectious than those of C-BSE infected animals. The symbols indicate inoculum dilution factors for which the incubation times (i.e. the inoculum concentration) are similar.