| Type | MGI:General | Description | nearly all mice are moribund by 4 days post intranasal infection with 2.3x10^4 P.F.U. of SARS-CoV lethality is also seen after infection with 2.3x10^3 or 2.3x10^2 P.F.U. the 50% lethal dose for SARS-CoV in these mice is less than 230 P.F.U. |
