You should click "Yes, I have active BVD in my herd." if you have had an animal test positive for BVD in the past year with a test that indicates persistently infected (PI) status or viremia (e.g. antigen capture ELISA (ACE), virus isolation (VI), immunohistochemistry (IHC), or polymerase chain reaction (PCR).

If you have not had an animal test positive for BVD in the past year, please click "No, I do not have active BVD in my herd."  If you are concerned that you may have BVD in your herd but have not had any animals test positive, follow as many of these recommendations as possible.  This will minimize the risk of bringing BVD into your herd and allow you to determine if BVD is present through disease surveillance.