are these soil borne or are they strictly hosted by the animals themselves? I am totally new. we will be getting a few goats soon to clear brush then decide if we want to continue goats or not. we may "rent" a few head to clear a problem area & then I will assess if I really want to raise goats or not. so... i'm not that interested in this first batch (I will learn, but not be personally vested in them). once they have done their job & gone back to the owner, if I get "my" goats - do I need to worry about such diseases left behind by the first "rented" group?