BHV-1 was first discovered in the early 1950s in feeder cattle in the Western United States.
Three main subtypes have been recognised:
- BHV-1.1 (IBR)
- BHV-1.3 (re-classified as BHV-5)
- BHV-2 - Pseudo-lumpy skin disease, gastrointestinal disease in calves
- BHV-4 - abortion
- BHV-5 - meningitis
BHV-1.1 has many different symptoms, in feedlot cattle respiratory problems tend to predominate, while in breeding animals genital lesions and abortions tend to be most frequent.
- Mahony TJ (2010) Bovine herpesvirus: what is missing from our understanding of the relationship between BoHV-1 and BoHV-5? Vet J 184(2):124-125
- Veselinova A et al (1980) Histological and ultrastructural changes in calves infected with bovine herpesvirus 2. Vet Med Nauki 17(3):39-44