Abstract
Infectious bovine rhinotracheitis (IBR), a contagious viral disease caused by Bovine herpesvirus 1 (BoHV-1). BoHV-1, belongs to the family Herpesviridae under newly carvedorder Herpesvirales. BoHV-1 is characterized by relatively large host range, short replication cycle and the ability to induce latent infection mainly, but not exclusively, in neurons. All BoHV-1 strains isolated hitherto belong to one single viral species, and are classified in three subtypes BoHV-1.1, BoHV-1.2a and BoHV-1.2b. Most BoHV-1.1 strains have been isolated from respiratory tract affections or abortion cases and BoHV-1.2 strains from genital organ lesions.IBR causes significant losses due to disease and trading restriction in the cattle industry (OIE, 2010). The first report of BoHV-1 in India was by Mehrotra and co-workers in 1976 and by the adaption of crossbreeding policy to augment the milk production resulted in the unhindered transmission of the virus, which has taken mammoth strides to spread to 31% of Indian cattle in 1996 to 42% in 2012 with an overall prevalence of 36% on cumulative study. Present paper summarises the current status of disease prevalence and relevant measures that should be adopted for control of the IBR with special reference to India.
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