Table 2 Virus neutralization tests interpreted by combining data from antisera raised against vaccine strains as currently presented in registered vaccine preparations
G1 and 431 | 255 | F9 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
G1 and 431 always neg. | G1 and 431 possibly neg. | G1 neg. or possibly neg. and 431 always pos. | G1 always pos. and 431 neg. or possibly neg. | G1 and 431 always pos. | Always neg. | Possibly neg. | Always pos. | Always neg. | Possibly neg. | Always pos. |
2 | 19 | 34 | 4 | 19 | 25 | 19 | 34 | 61 | 9 | 8 |
3 % | 24 % | 44 % | 5 % | 24 % | 32 % | 24 % | 44 % | 78 % | 12 % | 10 % |