Some beasts have 70% chance on hit to infect you blood disease/insects, lasts 6~7 rounds

I could do nothing but waiting once got bite.
Now I am lv70, 4 skill points waste on defensive skills, but what really work are "Kill it first" and "A High BC".
I think "No antidote policy" meant to encourage spending skill points for "pure blood", however antidote is still needed to save time.
e.g.
Antidote against blood disease, 500 Gold, remove blood disease next round if not in combat.