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Chlamydial-caused infectious keratoconjunctivitis in bighorn sheep of Yellowstone National Park

Journal of Wildlife Diseases
By: , and 

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Abstract

An epizootic of infectious keratoconjuctivitis occurred in bighorn sheep (Ovis canadensis) in Yellowstone National Park during the winter of 1981-82. The causative organism was identified as Chlamydia sp. Mortality related to the epizootic was approximately 60% of an estimated 500 bighorn sheep in the northern range population. The infection probably affected all sex and age classes, but field surveys of live animals and mortality suggested that mature rams died disproportionately. Limited field observations the following winter on individuals having both normal and cloudy-appearing eyes suggested that half of the bighorns then present on the core units of winter range had contracted the disease and survived. By 1988, there were about 300 bighorn sheep in the population.
Publication type Article
Publication Subtype Journal Article
Title Chlamydial-caused infectious keratoconjunctivitis in bighorn sheep of Yellowstone National Park
Series title Journal of Wildlife Diseases
Volume 28
Issue 2
Year Published 1992
Language English
Publisher Wildlife Disease Association
Publisher location Lawrence, KS
Description 6 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of wildlife diseases
First page 171
Last page 176
Country United States
State Idaho, Montana, Wyoming
Other Geospatial Yellowstone National Park
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