Table 2. Mortality rates and mean time to death (MTD) of the LAV candidates in outbred CD-1 mice after primary subcutaneous or intracerebral infection.
Virus | Subcutaneous (sc) Infection | Intracerebral (ic) Infection | ||||
---|---|---|---|---|---|---|
# surviving mice | Survival (%) | MTDa ± STDb (days) | # surviving mice | Survival (%) | MTD ± STD (days) | |
WT EEEV FL93-939 | 2/24c | 8.3 | 5.0 ± 1.1 | 0/8d | 0 | 2.4 ± 0.4 |
5’U4&6 | 11/24 | 45.8 | 8.2 ± 1.3 | 1/6 | 16.7 | 4.2 ± 1.8 |
C65-69 | 22/24 | 91.7 | 7.5 ± 0.7 | 2/6 | 33.3 | 5.1 ± 0.3 |
E71-77 | 1/24 | 4.2 | 5.5 ± 0.5 | 0/8 | 0 | 4.3 ± 0.8 |
3’U11337 | 21/23 | 91.3 | 6.3 ± 0.4 | 0/8 | 0 | 2.9 ± 0.8 |
5’U4&6 C65-69 | 24/24 | 100 | N/A | 6/6 | 100 | N/A |
5’U4&6 E71-77 | 24/24 | 100 | N/A | 5/6 | 83.3 | 5 ± 0.0 |
5’U4&6 3’U11337 | 24/24 | 100 | N/A | 2/6 | 33.3 | 5.8 ± 0.9 |
C65-69 E71-77 | 19/24 | 79.2 | 6.9 ± 0.6 | 3/6 | 50 | 6 ± 0.7 |
C65-69 3’U11337 | 23//23 | 100 | N/A | 0/6 | 0 | 4.9 ± 1.0 |
E71-77 3’U11337 | 15/23 | 65.2 | 6.4 ± 1.5 | 0/8 | 0 | 3.9 ± 0.5 |
5’U4&6 C65-69 E71-77 | 29/29 | 100 | N/A | 6/6 | 100 | N/A |
5’U4&6 C65-69 3’U11337 | 30/30 | 100 | N/A | 6/6 | 100 | N/A |
5’U4&6 E71-77 3’U11337 | 32/32 | 100 | N/A | 6/6 | 100 | N/A |
5’U4&6 C65-69 E71-77 3’U11337 | 33/33 | 100 | N/A | 6/6 | 100 | N/A |
aMTD: Mean time to death of mice succumbing to infection
bSTD: Standard deviation
cSubcutaneous infection: 6–8 independent experiments.
dIntracerebral infection: 2–3 independent experiments