Gillette K G, Smith P C
Am J Vet Res. 1985 Dec;46(12):2596-600.
Nasal swab samples were collected from calves on individual farms in Tennessee and sequentially at an auction barn and at a feedlot to detect respiratory syncytial virus (RSV). In 1976, RSV was isolated from 5 of 225 calves at the auction barn and from 13 of 92 calves examined at the feedlot. Of the 13 isolations, 11 were from calves with acute respiratory tract disease. Most (14/18) calves infected with RSV were also shedding parainfluenza-3 virus in their nasal secretions. Attempts to isolate RSV in the 1977 study were unsuccessful, but there was serologic evidence of RSV infection. Most calves had serum antibody to RSV when examined initially at the farm or at the auction barn. Approximately 46% (46/99) of calves in the 1976 study and 71% (40/56) of calves in the 1977 study had a greater than or equal to 4-fold increase in serum antibody titer to RSV from auction barn to feedlot sample collection.
从田纳西州各个农场的犊牛身上采集鼻拭子样本，并在拍卖场和饲养场依次采集，以检测呼吸道合胞病毒（RSV）。1976年，在拍卖场的225头犊牛中有5头分离出RSV，在饲养场检查的92头犊牛中有13头分离出RSV。在这13次分离中，11次来自患有急性呼吸道疾病的犊牛。大多数（14/18）感染RSV的犊牛鼻分泌物中也排出副流感3型病毒。1977年的研究中分离RSV的尝试未成功，但有RSV感染的血清学证据。大多数犊牛在农场或拍卖场初次检查时就有针对RSV的血清抗体。1976年研究中的约46%（46/99）犊牛和1977年研究中的71%（40/56）犊牛从拍卖场到饲养场样本采集时，针对RSV的血清抗体滴度有大于或等于4倍的升高。
