Abstract
Contagious keratoconjunctivitis, or pink-eye, broke out on a sheep farm over a period from April to September, 1964, affecting 88 percent of 1, 296 animals kept on that farm.
It started with lacrimation, which was followed by photophobia, swollen eyelids, conjunctivitis, cloudy cornea, and vascularization of the cornea. The sense of sight was lost for 7 to 10 days during the manifestation of these symptoms. Prognosis was good.Natural healing was brought about in most cases after a lapse of 30 to 60 days. There was no sex difference in susceptibility for this disease. Lambs were less susceptible and manifested milder symptoms than adult sheep.
Chloramphenicol ointment was not effective for treatment. When subjected to experimental infection with this disease by means of a washing of the infected eye, sheep presented essentially the same clinical manifestations as the spontaneous case after 2 or 3 days, but neither goats nor calves revealed. apparent infection.
