Infectious bovine rhinotracheitis virus and its role in bovine abortion

Abstract

Abstract Extract Infectious bovine rhinotracheitis (IBR) was first recognized as a clinical entity in the U.S.A. in 1950 (Miller, 1955 Abinanti, F. R. and Plumer, G. J. 1961. The isolation of infectious bovine rhinotracheitis virus from cattle affected with conjunctivitis — observations on the experimental infection. Am. J. vet.Res., 22: 13–17. [Google Scholar]) and by 1954 had reached a high incidence in dairyherds and feedlot cattle (Schroeder and Moys, 1954 Armstrong, J. A., Pereira, H. C. and Andrewes, C. H. 1961. Observations on the virus of infectious bovine rhinotracheitis, and its affinity with the herpesvirus group. Virology, 14: 276–285. [Crossref] , [Google Scholar]; McKercher et al., 1954 Baker, J. A., McEntee, K. and Gillespie, J. H. 1960. Effect of infectious bovine rhinotracheitis-infeotious pustular vulvoaginitis (IBR-IPV) virus in newborn calves. Cornell Vet., 50: 156–170. [Google Scholar], 1956 Barenfus, M., Delli Quadri, C. A., Mclntyre, R. W. and Schroeder, R. J. 1963. Isolation of infectious bovine rhinotracheitis virus from calves with meningoencephalitis. J. Am. vet. med.Ass., 143: 725–728. [Google Scholar]). Subsequently Madin et al. (1956) Chow, T. L., Molello, J. A. and Owen, N. V. 1964. Abortion experimentally induced in cattle by infectious bovine rhinotracheitis virus. J. Am. vet. med. Ass., 144: 1005–1007. [Google Scholar] isolated the causal virus from nasal scrapings of clinically affected cattle, and this isolate was later identified by Armstroag et al. (1961) Crane, C. S., Lukas, G. N. and Watkins, W. W. 1964. Infectious bovine rhinotracheitis abortion in California beef cattle. J. Am. vet. med. Ass., 144: 12–18. [Google Scholar] as being of the herpesvirus group.