I'm just curious, I tested both my girls for CAE (came back negative) but I didn't talk to my vet about testing for Johnes or CL. I was wondering how they test for these things? I read somewhere that doing a fecal culture is most effective for Johnes, but it can take 4 to 6 weeks to get an answer. How about CL? Neither of my girls show signs of either disease, and testing is so expensive that hardly anyone ever tests and usually treats after the fact here but I'm still concerned. Also, how early can you take blood for CAE? We're getting 2 doelings in a few months and, as per usual, come from a farm that doesn't test but that does keep a closed herd. They'll be 12 weeks of age.