Pathogenesis and Clinical Management of Infectious Bovine Keratoconjunctivitis
DOI:
https://doi.org/10.21423/aabppro19877447Keywords:
Infectious bovine keratoconjuctivitis, ocular disease, economic losses, growth rate, purchase priceAbstract
Infectious bovine keratoconjuctivitis (IBK) is a widespread ocular disease of cattle which is caused by the bacterium Moraxella bovis (M. bovis).1,2 The annual losses in the United States are estimated to be approximately $200,000,000.3 Specific economic losses include decreased growth rates, lower purchase prices for cattle with scarred eyes, reductions of post-weaning weight gains and treatment associated costs.4,5 The case attack rate of IBK in yearling cattle may range between 20 and 100%.5,6,7 New cases occur over the entire summer, and epizootics may last for as long as 4 months.6,7 The economic significance of IBK and the commercial development of vaccines has stimulated recent studies into the pathogenesis and treatment of IBK.