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  • Title: Serologic survey for Trichinella spp. in grizzly bears from Alaska.
    Author: Zarnke RL, Gamble R, Heckert RA, Ver Hoef J.
    Journal: J Wildl Dis; 1997 Jul; 33(3):474-9. PubMed ID: 9249692.
    Abstract:
    Blood was collected from 878 grizzly bears (Ursus arctos) in seven geographic areas of Alaska from 1973 to 1987. An enzyme-linked immunosorbent assay procedure was used to test sera for evidence of exposure to Trichinella spp. Serum antibody prevalence ranged from 5% (10 positive of 196 tested) in the Southern Region of the state to 83% (355 of 430 tested) in the Northern Region. These major discrepancies may be a result of differing food habits of bears in the major geographic areas. Prevalence was higher in older age cohorts. Neither year-of-collection nor sex had a significant effect on prevalence.
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