Survival curves after topical application of increasing concentrations of (A) ganciclovir or (B) cidofovir by using the standard treatment regimen after BV inoculation through skin scarification. For ganciclovir: black long dash, 5%; black short dash, 3%; black dot, 1%; gray long dash, 0.5%; gray short dash, 0.3%; gray dot, 0.1%; solid black, vehicle control. For cidofovir: black long dash, 0.3%; black short dash, 0.1%; black dot, 0.03%; gray long dash, 0.01%; gray short dash, 0.003%; gray dot, 0.001%; solid black, vehicle control.