From: Association between sensitivity of viral thymidine kinase-associated acyclovir-resistant herpes simplex virus type 1 and virulence
Score
Dermatitis condition
Keratitis condition
0
Normal
1
Mild swelling (eyelid)
Neovascularization (the periphery of eyes)
2
Mild swelling (head)
partial opacity
4
Severe fur loss (head)
Bleb formation
5
-
Ulcer, Necrosis