Infectious bovine keratoconjunctivitis 2019
Moraxella bovis has some factors associated
with fibroblasts, neutrophils and collagenase release from epithelial cells. One of these
factors are hydrolytic enzymes which have the ability to degrade lipids, matrix proteins,
mucopolysaccharides may cause corneal ulcerations. There are also necrotizing and cytotoxic
factors released by bacteria, that exterminates corneal epithelial cells. Moraxella bovis has
ability to produce hemolysin and it is essential virulence factor of bacteria. Nonhemolytic
strains are not so capable to cause IBK. The source of hemolytic isolates can be recovered
when there is enough UV radiation (Brown et al., 1998).
Clinical signs
The clinical occurrence, stability of infection, animal condition and rate of progression of the
disease will be different from individual to individual (Postma et al., 2007). The disease
usually is acute and tends to spread rapidly in all species, specially Hereford or Hereford-
annaabi.ee 
