title: Serologic survey for Trichinella spp. in grizzly bears from Alaska.
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.
authors.affiliation: Alaska Department of Fish and Game, Fairbanks 99701-1599, USA.
authors.forename: R L
authors.initials: RL
authors.lastname: Zarnke
authors.forename: R
authors.initials: R
authors.lastname: Gamble
authors.forename: R A
authors.initials: RA
authors.lastname: Heckert
authors.forename: J
authors.initials: J
authors.lastname: Ver Hoef
mesh_terms: D000367:Age Factors; D000413:Alaska / Q000453:epidemiology; D000818:Animals; D000909:Antibodies, Helminth / Q000097:blood*; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005260:Female; D016014:Linear Models; D008297:Male; D015995:Prevalence; D011336:Probability; D014234:Trichinella / Q000276:immunology*; D014235:Trichinellosis / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*; D001503:Ursidae
chemical_list: D000909:Antibodies, Helminth