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<blockquote data-quote="Caustic Burno" data-source="post: 967148" data-attributes="member: 694"><p>From Merck</p><p>The disease usually is acute and tends to spread rapidly. One or both eyes may be affected. In cattle, dry, dusty environmental conditions; shipping stress; bright sunlight; and irritants such as pollens, grasses, and flies tend to predispose to or exacerbate the disease. Flies also serve as vectors. In all species, young animals are affected most frequently, but animals of any age are susceptible. The initial signs are photophobia, blepharospasm, and epiphora; later, the ocular discharge may become mucopurulent. Conjunctivitis, with or without varying degrees of keratitis, is always present. In sheep and goats, concurrent polyarthritis may be present. In goats, mammary gland and uterine infection may also occur simultaneously with keratoconjunctivitis. Appetite may be depressed due to ocular discomfort or visual disturbance that results in inability to locate food. The clinical course varies from a few days to several weeks unless complicated by other diseases.</p></blockquote><p></p>
[QUOTE="Caustic Burno, post: 967148, member: 694"] From Merck The disease usually is acute and tends to spread rapidly. One or both eyes may be affected. In cattle, dry, dusty environmental conditions; shipping stress; bright sunlight; and irritants such as pollens, grasses, and flies tend to predispose to or exacerbate the disease. Flies also serve as vectors. In all species, young animals are affected most frequently, but animals of any age are susceptible. The initial signs are photophobia, blepharospasm, and epiphora; later, the ocular discharge may become mucopurulent. Conjunctivitis, with or without varying degrees of keratitis, is always present. In sheep and goats, concurrent polyarthritis may be present. In goats, mammary gland and uterine infection may also occur simultaneously with keratoconjunctivitis. Appetite may be depressed due to ocular discomfort or visual disturbance that results in inability to locate food. The clinical course varies from a few days to several weeks unless complicated by other diseases. [/QUOTE]
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