Do a search on this forum for CL. There are a couple very good threads that can answer your questions. You would want to isolate any goat that has an abscess. Have the pus tested when it bursts or you lance it. Lance it on a tarp, wear gloves, collect a pus sample and flush out abscess. Throw away the tarp. Once the abscess is healed, the goat can go back to the herd. But more than likely CL is already in your dirt. Whether you choose to manage CL or remove all goats from the property and "clean up" your dirt and buildings is up to you.