First, though, do you test for all three? In my area, everyone advertises that their goats are CAE free, some CL, but I haven't herd mention of Johne's. How do you determine if you need to test for each of the diseases? Also, how do you go about it? Do you go to the vet and they take samples and mail it off, or what? I want to know for the future, and also because the last time my two were tested was last august, so it's coming up and I want to know if I should expand what I'm testing for. Thanks!