I bought some pairs on June 13th. All cows and calfs looked ok, but one calf starting getting sick. She had a snotty nose and some weazing when breathing. We gave her a shot of la200 and she seemed to be doing better. I found her dead yesterday. I bought this pair from a sale barn and the trip to my place is about a 20 minute haul. I do not know how far away she was shipped to the barn by the previous owner. My question: I assume this was either pnuemonia or shipping fever--(if there is a difference). I did not call the vet as she seemed to be doing better. Do I need to have the vet come out and check my other calves? They dont seem to be sick, but I thought the other calf was getting better. They seem ok, but they do cough from time to time.