FIG. 3.

Prevention of LDV-induced polioencephalomyelitis by treatment with undiluted anti-LDV switch mutant-containing ascitic fluids. Onset of paralysis was monitored daily in groups of six or seven immunosuppressed C58 mice infected with LDV and treated on days 2, 4, and 7 p.i. with NaCl or with undiluted anti-LDV switch variant-containing ascitic fluids. The antibody concentration was estimated by ELISA to be approximately 10 times higher for IgG1 and IgG2b and 5 times higher for IgG3 than for IgG2a.