Method of distinguishing an IBRV-vaccinated bovine from a bovine infected with a wild type virus

摘要

The present invention provides recombinant infectious bovine rhinotracheitis (IBR) viruses useful in vaccines to protect bovines from infectious bovine rhinotracheitis and other bovine diseases. The present invention further provides methods for distinguishing an animal vaccinated with the vaccine of the present invention from an animal infected with a naturally-occurring IBR virus. The present invention also provides isolated DNA encoding the gpE glycoprotein of IBR virus and isolated DNA encoding the gpG glycoprotein of IBR virus.