Rattlesnake Vaccine?

[Hugh]

When I was in college we took a geology field trip to Batesville Ark one summer to learn how to map geologic formations. It involved a lot of hiking through the woods looking for different outcrops. There was one particular area where we followed a dry creek bed up a mountain. It seemed that there was a Copperhead about every ten steps all the way up that mountain! I think the class of 10 counted over 150 total Copperheads that day. Sure glad they aren't aggressive by nature. After jumping out of our skins over the first few, we finally just carefully stepped around them and kept going!