LIVE POLIO IRUS VACCINES

Experimental Studies on Animals with Attenuated Poliovirus
71
TABLE 3.
TYPE 3
Cox (7.0PFU/1.0)
SABIN (6.7PFU/1.0)
L.
C.
B.S.
C.A.
L.
C.
B.S.
C.A.
10 °
10-1
10-2
5/5
4/4
4/4
2
2
2
3
2
2
I. S.
2
1
2
Inoculation
4/4
4/4
5/5
1
1
1
1
1
1
o
10l
10-1
10-2
2/5
1/5
0/5
2
1
o
2
o
o
I. C.
o
o
o
Inoculation
0/4
0/5
0/5
o
o
o
o
o
o
o
No. of monkeys with polio lesions / No. of inoculated monkeys
i£' §ie -- "-_ ¡·
- -
S~~~~~~~4
W
24.a s
Se~~~~~~~~~~~~~~~
FIG. 1.
Inoculation of india ink into the lumbar cord.