Attenuated Bovine Respiratory Syncytial virus

摘要

The present invention relates i.a. to Bovine Respiratory Syncytial Viruses that are not capable of expressing a functional SH-protein and/or G-protein due to a mutation in the genes encoding the said proteins. Furthermore, the invention relates to vaccines based upon such Bovine Respiratory Syncytial Viruses and to methods for the preparation of such vaccines. Also the invention relates to diagnostic test kits for discriminating wild-type Bovine Respiratory Syncytial Viruses from Bovine Respiratory Syncytial Viruses according to the invention and to methods for the discrimination between those viruses.