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Updated: Mar 7, 2026
Propagating and Detecting an Infectious Molecular Clone of Maedi-visna Virus that Expresses Green Fluorescent Protein
Published on: October 9, 2011
Prevalence of Maedi-visna in Saskatchewan sheep
Rhonda Heinrichs1, Wendy Wilkins1, Gordon Schroeder1
1Living Skies Veterinary Services P.C. Ltd., Chaplin, Saskatchewan (Heinrichs); Government of Saskatchewan, Ministry of Agriculture Livestock Branch, Saskatoon, Saskatchewan (Wilkins); Saskatchewan Sheep Development Board, Saskatoon, Saskatchewan (Schroeder); Western College of Veterinary Medicine, Saskatoon, Saskatchewan (Campbell).
Abstract:
A study was conducted to estimate flock and individual seroprevalence of Maedi-visna in Saskatchewan and evaluate risk factors for seropositive flocks. Thirty-five percent (24/68) of flocks and 4.6% (93/2010) of individual samples were positive. Within-flock prevalence ranged from 3.3% to 96.7%. Significant flock-level predictors of flock prevalence included large flock size, purchasing > 50 sheep and respiratory problems in the previous 5 years.
