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| <big><center>[[Infectious agents and parasites|'''BACK TO INFECTIOUS AGENTS AND PARASITES''']]</center></big> | | <big><center>[[Infectious agents and parasites|'''BACK TO INFECTIOUS AGENTS AND PARASITES''']]</center></big> |
| <big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big> | | <big><center>[[Bacteria|'''BACK TO BACTERIA''']]</center></big> |
| + | |
| + | ===Overview=== |
| + | |
| + | *''Moraxella bovis'' causes infectious bovine keratoconjunctivitis |
| + | *Found on mucous membranes of carrier cattle |
| + | *Susceptible to desiccation therefore short survival in environment |
| + | *Flies act as vectors, in which the bacteria can survive 72 hours |
| + | *Other species non-pathogenic |
| + | |
| + | |
| + | ===Characteristics=== |
| + | |
| + | *Short, plump Gram negative rods or cocci occuring in pairs |
| + | *Non-motile |
| + | *Aerobic |
| + | *Catalase positive, oxidase postitive |
| + | *Unable to utilise sugars |
| + | *No growth on MacConkey agar |
| + | *Growth enhanced by addition of blood or serum to media |
| + | |
| + | ===Pathogenesis and pathogenicity=== |
| + | |
| + | *Virulent strains have fimbriae, are haemolytic and grow into agar |
| + | |
| + | ===Clnical infections=== |
| + | |
| + | **Infectious bovine keratoconjunctivitis, or pink-eye/New Forest disease is an ocular disease of cattle |
| + | *Highly contagious infection of superficial tissues of eye |
| + | *Affects animals under 2 years old |
| + | *Decreased weight gain in beef cattle, decreased milk production |
| + | * |
| + | |
| + | |
| + | ===Diagnosis=== |
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| + | |
| + | ===Treatment and control=== |