Infectious Bovine Rhinotracheitis (IBR)

Infectious Bovine Rhinotracheitis is caused by Bovine Herpes Virus 1, which is also responsible for the disease syndrome known as infectious pustular vulvovaginitis and balanoposthitis (IPV-IPB). It appears that the latter (IPV) was the primary form of the disease until the animals were concentrated into high population units such as beef feedlots and large dairy herds. The virus is associated with

1. upper respiratory tract infections (IBR) and bovine respiratory disease,
2. conjunctivitis
3. reproductive disorders including IPV, abortion and neonatal death.