Table 1.

Clinical scoring of mice

Score of mice	Clinical symptoms
0	No disease
1	Flaccid tail
2	Tail paralysis
3	Tail paralysis and mild abnormal gait
4	Tail paralysis and severe abnormal gait
5	Tail paralysis and paralysis of one hind limb
6	Tail paralysis and total (both) hind-limb paralysis
7	Tail, hind-limb, and forelimb paralysis
8	Death