Serosurvey of selected zoonotic agents in polar bears (Ursus maritimus)

Veterinary Record
By: , and 



Between 1982 and 1999 blood samples were collected from 500 polar bears (Ursus maritimus) captured in the Beaufort and Chukchi seas, to determine the seroprevalence of Brucella species, Toxoplasma gondii, and Trichinella species infections. The bears were classified into four age groups, cubs, yearlings, subadults and adults. Brucella and Toxoplasma antibodies were detected by agglutination (a buffered acidified card antigen and rapid automated presumptive test for brucellosis and a commercial latex agglutination test for toxoplasmosis); an ELISA was used to detect Thichinella antibodies. The overall seroprevalence of Brucella species was 5 per cent, and subadults and yearlings were 2.62 times (95 per cent confidence interval 1-02 to 6-82) more likely to be seropositive for Brucella species than adults and their cubs. The antibody prevalence for Toxoplasma gondii was 6 per cent, and for Trichinella species 55.6 per cent. The prevalence of antibodies to Trichinella species increased with age (P<0.001).

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Serosurvey of selected zoonotic agents in polar bears (Ursus maritimus)
Series title Veterinary Record
DOI 10.1136/vr.156.1.7
Volume 156
Issue 1
Year Published 2005
Language English
Contributing office(s) Alaska Science Center
Description 7 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Veterinary Record
First page 7
Last page 13
Online Only (Y/N) N
Additional Online Files (Y/N) N