No, I was also in the countryside on the mountain when blowing firewood to the bite, walk back to the village in nearly two hours, but also not dead, the village has some herbs, quite useful, at that time I was almost fainted, poisonous gas attack ah, but ate the herbs, and immediately woke up, I have not been to the hospital, and then the herbs to get nearly a month, nearly well, but there are aftereffects of the soreness of the branch, joints, limited movement, and other no major effects. There are only after-effects, soreness and limitation of joint movement, but no other major effects. If you work in the mountains in the countryside, you should know the efficacy of some herbs against poisonous snakes, just in case. But I wish all of you not to be bitten by snakes...