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1 October 1992 EXPOSURE TO PSOROPTES SP. MITES IS COMMON AMONG BIGHORN SHEEP (OVIS CANADENSIS) POPULATIONS IN CALIFORNIA
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Abstract

Sera (n = 806) from 50 populations of bighorn sheep (Ovis canadensis) in California (USA) were evaluated for antibodies to Psoroptes sp. mites using a kinetic enzyme-linked immunosorbent assay (ELISA). Test values for each sample were determined to be either positive or negative at each of two ELISA cutoff values that provided either 100% sensitivity (low cutoff) or 100% specificity (high cutoff), respectively. One hundred sixty-eight (20.8%) sera were seropositive at the low cutoff value, and 87 (10.8%) of these sera also were seropositive at the high cutoff value. Eleven populations were designated as scabies-suspect and 25 populations were designated as scabies-positive because they had at least one seropositive animal at the low and the high cutoff values, respectively. Based on these results, exposure to Psoroptes sp. mites appeared to be widely distributed among bighorn sheep populations from 1980 to 1990 and infested animals may have been present prior to 1980.

Mazet, Boyce, Mellies, Gardner, Clark, and Jessup: EXPOSURE TO PSOROPTES SP. MITES IS COMMON AMONG BIGHORN SHEEP (OVIS CANADENSIS) POPULATIONS IN CALIFORNIA
Jonna A. K. Mazet, Walter M. Boyce, Jay Mellies, Ian A. Gardner, Richard K. Clark, and David A. Jessup "EXPOSURE TO PSOROPTES SP. MITES IS COMMON AMONG BIGHORN SHEEP (OVIS CANADENSIS) POPULATIONS IN CALIFORNIA," Journal of Wildlife Diseases 28(4), 542-547, (1 October 1992). https://doi.org/10.7589/0090-3558-28.4.542
Received: 25 June 1991; Published: 1 October 1992
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