Well in my country there's only one type of poisonous snake and it's viper. Anyway even if you get bitten it's not so serious that you'll die (unless you're child or you're not healthy) but still you'll be ill for a two weeks or so. That's what I heard.
You're lucky to have only that one type! We have about four very deadly ones, two of which I run into pretty frequently. Cottonmouths the most. I nearly stepped on one last year. Still, I'm glad you weren't bitten
I heard that cottonmouths are pretty aggressive it's great that you weren't bitten as well Anyway the one I was writing about earlier was Vipera berus (common European viper). I wish I could take picture of it someday because they are rather beautiful snakes