Friday, March 23, 2012

Toxoplasma gondii in Circumpolar People and Wildlife

Vector-Borne and Zoonotic Diseases
Toxoplasma gondii in Circumpolar People and Wildlife

To cite this article:
Stacey A. Elmore, Emily J. Jenkins, Kathryn P. Huyvaert, Lydden Polley, J. Jeffrey Root, and Chester G. Moore. Vector-Borne and Zoonotic Diseases. January 2012, 12(1): 1-9. doi:10.1089/vbz.2011.0705.

Author information
Stacey A. Elmore,1 Emily J. Jenkins,1 Kathryn P. Huyvaert,2 Lydden Polley,1 J. Jeffrey Root,3 and Chester G. Moore4
1Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, Saskatchewan.
2Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, Colorado.
3United States Department of Agriculture, Wildlife Services, National Wildlife Research Center, Fort Collins, Colorado.
4Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado.

ABSTRACT

Despite extensive worldwide surveillance in populations of both people and wildlife, relatively little is known about Toxoplasma gondii ecology in the circumpolar north. Many northern animals and people demonstrate exposure to T. gondii, but the apparent low densities of domestic or wild felids suggest that additional transmission mechanisms are responsible for T. gondii persistence in high latitudes, whether remote source (from another region), vertical, or dietary. People in these northern communities who practice subsistence hunting might have an increased infection risk due to traditional food preparation techniques and frequent handling of wild game. Recent advances in T. gondii genotyping, understanding of host–parasite relationships, and increased human and wildlife surveillance will help to address knowledge gaps about parasite evolution, distribution, and abundance throughout the Arctic and Subarctic.