TABLE 3

Neurovirulence LD50 of vaccinia viruses in suckling mice inoculated by the intracerebral route

StrainInoculation dose (log PFU/mouse)Mortality (no. of deaths/total no.)LD50a (log PFU/mouse)
Lister3.310/101.4
2.37/10
1.35/10
LC16mO3.310/101.6
2.39/10
1.33/10
LC16m85.36/105.1
4.32/10
3.30/10
  • a LD50, 50% lethal dose.