Infectious Bovine Keratoconjunctivitis Flashcards

Question	Answer		Article
What agent causes IBK?	Bacterial pathogen Moraxella bovis.		Link to Article
By what other names is the disease known?	New Forest Eye Pink Eye Blight		Link to Article
At what time of year is it most common and why?	In the Summer and Autumn Higher numbers of its fly vector in the warmer months Irritation by dust and sunlight predisposes eyes to infection		Link to Article
How does the bacterium damage the cornea of the eye?	It secretes β-haemolysins and other enzymes which degrade the corneal epithelium.		Link to Article
What is the usual clinical presentation?	IBK is very painful so animals often blepharospasm and are photophobic Lacrimation increases The conjunctiva is congested, oedematous and reddened Animals may stop eating and lose weight or milk yield		Link to Article
Do animals with IBK become bacteraemic?	No – the infection is confined to the eye.		Link to Article
From what and on what media can the organism be cultured?	From lacrimal swabs On media enriched with blood or serum		Link to Article
What is the best method for administration of antibiotics?	Sub-conjunctival injection		Link to Article