My regular vet is now offering rattlesnake vaccinations. They are given in a series of two, & are only $20.0 a pop. So far, everything I have read points towards this being a good thing. Dogs are not immune from the venom, you still need to get them to a vet with anti-venom right away, but supposedly they are not as badly effected from the venom, & the recovery time is much faster. The only vaccination side-effects I have found is that there can be swelling, & it can be to the point where fluid needs to be drained off. There are just tons of rattlers around both where I live & where I hike. I saw one sunning on a dirt road yesterday. I was wondering if anyone has any information or experience with this they wouldn't mind sharing.