(CT) Bovine Respiratory Syncytial virus (BRSV) infection was confirmed by PCR of lung tissue from a 5-month-old heifer that was representative of 10 sick calves with temperatures ranging from 103.4-105.5 and respiratory signs. In addition to the BRSV detection, Mannheimia hemolytica and Pasteurella multocida were cultured from lung tissue. This animal died spontaneously prior to treatment, briefly after being detected as sick. Others are being treated with antibiotics and some are reported to be responding favorably to treatment.