Bovine herpesvirus type 1 (BoHV-1) is distributed worldwide and produces high economic losses to the in livestock industry. BoHV-1 infection causes respiratory, reproductive and may also be associated with neurological signs. There are several tests that can diagnose the infection, however, serological techniques currently used are not able to differentiate antibodies produced by vaccination from those produced in response to natural infection. What is sought is a mean to differentiate vaccinated animals of those infected by the field strain.