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Journal of Wildlife Diseases, 42(2), 2006, pp. 290-300
© Wildlife Disease Association  2006
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SEROLOGIC SURVEY FOR BRUCELLA SPP., PHOCID HERPESVIRUS-1, PHOCID HERPESVIRUS-2, AND PHOCINE DISTEMPER VIRUS IN HARBOR SEALS FROM ALASKA, 1976–1999

Randall L. Zarnke1,6, Jeremiah T. Saliki2,5, Alastair P. Macmillan3, Simon D. Brew3, Claire E. Dawson3, Jay M. Ver Hoef1, Kathryn J. Frost1 and Robert J. Small4

1 Alaska Department of Fish and Game, 1300 College Road, Fairbanks, Alaska 99701-1599, USA
2 Oklahoma Animal Disease Diagnostic Laboratory, Oklahoma State University, Stillwater, Oklahoma 74078, USA
3 Statutory and Exotic Bacteria, Veterinary Laboratories Agency, New Haw, Addlestone, Surrey, KT15 3NB United Kingdom
4 Alaska Department of Fish and Game, 1255 W 8th Street, Juneau, Alaska 99802-5526, USA
6 Corresponding author (email: itrap2{at}acsalaska.net)

ABSTRACT:   Harbor seals (Phoca vitulina richardsi) were captured in the coastal regions of Southeast Alaska, Gulf of Alaska, Prince William Sound (PWS), and Kodiak Island during 1976–1999. Blood was collected from 286 seals. Sera were tested for evidence of exposure to Brucella spp., phocid herpesvirus-1 (PhoHV-1), phocid herpesvirus-2 (PhHV-2), and phocine distemper virus (PDV). Antibody prevalence rates were 46% (46/100) for Brucella spp., 93% (225/243) for PhoHV-1, 0% (0/286) for PhHV-2, and 1% (2/160) for PDV. Antibody prevalence for Brucella spp. was directly related to host age. Antibody prevalence for PhoHV-1 was higher in PWS as compared to the other three regions. No evidence of mortality attributable to these four agents was observed during the course of this study. Based on the results of this survey, none of these agents is considered a significant mortality factor in harbor seals from the four regions of coastal Alaska included in the study.
  Key words:  Alaska, Brucella sp., harbor seals, phocid herpesvirus, phocine distemper virus, Phoca vitulina richardsi, pinnipeds, serology.

5 Current address: Athens Veterinary Diagnostic Laboratory, College of Veterinary Medicine, The University of Georgia, Athens, GA 30602, USA




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R. L. Zarnke, J. M. Ver Hoef, and R. A. DeLong
Geographic pattern of serum antibody prevalence for Brucella spp. In caribou, grizzly bears, and wolves from alaska, 1975-1998.
J. Wildl. Dis., July 1, 2006; 42(3): 570 - 577.
[Abstract] [Full Text] [PDF]


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