Infectious Bovine Rhinotracheitis (IBR)

Infectious Bovine Rhinotracheitis (IBR) is a highly contagious, infectious respiratory disease that is caused by Bovine Herpesvirus-1 (BHV-1). Once infected with IBR the virus is never fully removed, it may become latent in nerve cells in the brain, but in times of stress can begin to multiply again and be re-excreted.
IBR is usually seen in the summer months affecting first-calved heifers. It can cause herpes lesions and inflammation in the respiratory tract. IBR, alongside BVD are two of the most common viral contributors to Bovine Respiratory Disease (BRD), the costliest disease of cattle worldwide (bacterial contributors include Mannheimia haemolytica and Mycoplasma Bovis).
Although clinical findings may be highly suggestive of IBR laboratory confirmation is the only way to accurately identify BHV-1 infection. Confirmation of exposure to BHV-1 is facilitated by measurement of antibody in serum, plasma or milk. 


For more information on the IDEXX IBR laboratory tests please click here