When I move there is definitely going to be ticks around. I'm not that far from a prairie path and there are lots of trees/bushes and wildlife everywhere. I haven't given a lyme shot to my dogs in many many years. I have 3 out of 4 black or mostly black dogs, finding ticks might be hard. Is there more then one strain of lyme disease or does the shot cover it all? What do you guys recommend? I need the pros and cons. I am not big on giving extra shots if not needed.