Navigation Links
Tuberculosis strain in indigenous communities linked to Canadian fur trade
Date:4/18/2011

Researchers have found that a strain of tuberculosis (TB) responsible for devastating some isolated Aboriginal populations in Canada was first introduced to these communities by French Canadian fur traders between 1710 and 1870.

The team has found a traceable link between the fur trade routes and modern day patterns of tuberculosis. Wendy Wobeser, a professor with Queen's Division of Infectious Diseases, is the member of this research team who originally identified the presence of this particular strain of TB in remote Aboriginal communities in Saskatchewan. Through her later work in northwestern Ontario with the Sioux Lookout First Nations Health Authority the link was made to the mode of introduction of the strain to remote First Nations communities.

"This research represents a level of thinking never applied to tuberculosis epidemiology in this country or elsewhere," says Dr. Wobeser. "Examining the migration and epidemiological traits of this disease could help researchers explain why it is proving so difficult to eradicate."

The researchers have hypothesized that social distance between indigenous peoples and various migrant groups contributed to this historical phenomenon. While the fur trade era was characterized by close social contact, intermarriage and trading collaborations, later waves of migrants who moved across Canada remained more socially and geographically isolated from indigenous peoples.

In order to better understand the migratory dynamics of TB in Canada, the researchers focused on a particular bacterial lineage. They connected the dispersal of this particular strain of TB to an estimated 5,419 individuals who migrated across Canada from Quebec during the fur trade era.

Despite the fact that later waves of immigration brought millions of individuals to Canada from global regions of high TB incidence, the particular tubercular strain introduced by the early fur traders remains the dominant strain in Western indigenous communities and among modern-day French-Canadian populations in Quebec.

By the late 19th century, indigenous populations were often forcibly segregated from the non-Aboriginal population, beginning the trend of displacement, crowding, and institutionalization that contributed to subsequent devastating TB epidemics among indigenous populations in Canada.


'/>"/>

Contact: Christina Archibald
christina.archibald@queensu.ca
61-353-332-877
Queen's University
Source:Eurekalert

Related biology news :

1. Gene with probable role in human susceptibility to pulmonary tuberculosis identified
2. Proteomics study yields clues as to how tuberculosis might be thwarting the immune system
3. Forsyth scientist receives major grant to support rapid, accurate, affordable test for tuberculosis
4. In India: A search for more effective tuberculosis drugs
5. Iowa State University researcher uncovers potential key to curing tuberculosis
6. Scientists take step toward simple and portable tuberculosis tests for developing world
7. Immune evasion common in many viruses, bacteria and parasites is uncommon in M. tuberculosis
8. Genome of bacteria responsible for tuberculosis of olive tree sequenced
9. Bodys own proteins may lead the way in global fight against tuberculosis
10. Study finds possible persistence switch for tuberculosis
11. New tool in the fight against tuberculosis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... 1, 2016   SoftServe , a global ... , an electrocardiogram (ECG) biosensor analysis system for ... IoT asset. The smart system ensures device-to-device communication ... wheel and mobile devices to easily ,recognize, and ... As vehicle technology advances, so too must the ...
(Date:11/29/2016)... 2016 BioDirection, a privately held medical device ... objective detection of concussion and other traumatic brain injury ... a meeting with the U.S. Food and Drug Administration ... Package. During the meeting company representatives reviewed plans for ... to commencement of a planned pilot trial. ...
(Date:11/28/2016)... -- "The biometric system market projected ... biometric system market is in the growth stage and ... The biometric system market is expected to be valued ... of 16.79% between 2016 and 2022. Government initiative in ... smartphones, rising use of biometric technology in financial institutes ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... ... December 08, 2016 , ... From wearable devices that ... over sports. On Thursday, December 15th a panel of entrepreneurs, innovators and a ... field at a Smart Talk session. Smart Talk will run from 8:30 – ...
(Date:12/8/2016)... 8, 2016 Eurofins announces the appointment of Sean ... Eurofins Scientific Inc. (ESI). Mr. Murray will bring ... and entrepreneurial experience in leading international business teams. As the National ... market to uphold Eurofins, status as the global leader in bio-analytical ... , , ...
(Date:12/8/2016)... OXFORD, England , December 8, 2016 ... Company, has expanded its customisable SureSeq™ NGS panel range with ... - allowing fast and cost-effective study of variants in familial ... copy number variation (CNV) detection on a single small panel ... and hotspot content. This includes all exons for LDLR ...
(Date:12/8/2016)... ... December 08, 2016 , ... Microbial genomics leader, uBiome, ... is one of just six company finalists in the Health & Medicine category. ... companies nominated as finalists in this year’s awards include Google, SpaceX, Oculus, and ...
Breaking Biology Technology: