This was posted on my local forum -- I don't even know what to say
I have seen Cottonmouths at the bottom of either end of my road, in the creeks but, thankfully have never seen them up where we live. Probably because we don't have a creek or a pond and the neighobr's Weimaraner is one heck of a snake hunter (I've watched her).
Venomous Snakes Harbor Deadly Brain-Swelling Virus - Yahoo! News