We have had a few cows abort calves in the last month. Dad happened to be in the pasture when the last one was delivered so he collected the fetus and some afterbirth and took it to the vet. The vet sent it to MU for analysis and it came back positive for BVD. The vet is returning on Tuesday and wants to check every animal on the farm. After this test comes back and any BVD-PI animals are sold what needs done? I read online to check every calf born, but somewhere said not to check them after they nurse colostrum, I didn't understand why. Any suggestions of what need to be done to get back to BVD free herd would be appreciated. Thanks again.