FIG. 7.

Change in body weight of 129X1/SvJ mice infected with wild-type SV (SVwt) or rSVMFjCG. Groups of 4 mice were inoculated intranasally with various doses of virus (10⁴ to 10⁷ PFU per mouse). The weight gain of each mouse was measured every day for up to 16 days after inoculation. The symbols, which indicate the dose of virus given or type of infection, are as follows: ▪, 10⁷ PFU of virus; ▵, 10⁶ PFU of virus; ▴, 10⁵ PFU of virus; ○, 10⁴ PFU of virus; •, mock infection. The body weight of one mouse that survived infection is shown by a dotted line.