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Permanent link (DOI): https://doi.org/10.7939/R3R49GH9B

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The Characteristics of Tuberculosis Transmission in the Indigenous people of the Canadian Prairies Open Access

Descriptions

Other title
Subject/Keyword
Tuberculosis
Transmission
Canadian-born
Prairies
Indigenous
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Patel, Smit J
Supervisor and department
Dr. Long, Richard (Department of Medicine)
Dr. Saunders,L Duncan (School of Public Health)
Examining committee member and department
Dr. Long, Richard (Department of Medicine)
Dr. Senthilselvan, A (School of Public Health)
Dr. Saunders,L Duncan (School of Public Health)
Dr. Beech, Jeremy (Department of Medicine)
Department
Department of Public Health Sciences
Specialization
Epidemiology
Date accepted
2015-09-04T14:19:22Z
Graduation date
2015-11
Degree
Master of Science
Degree level
Master's
Abstract
Tuberculosis (TB) incidence in the Indigenous people of Canada continues to be disproportionately higher than that of the non-Indigenous and foreign-born people. For more than a decade, the rate of TB in the Indigenous people of Canada has remained relatively constant despite recent population growth. Most researchers have speculated that demographic and geographic risk factors along with the colonially and historically rooted poor social circumstances are associated with the ongoing transmission in the Indigenous people, thus raising concerns for TB control efforts. This thesis combined conventional and molecular DNA fingerprinting of Mycobacterium tuberculosis isolates to (1) identify and describe the demographic and geographic characteristics of all transmission events from Canadian-born pulmonary TB cases on the Prairie Provinces in 2007 and 2008; and (2) describe the predictors of new infection and secondary cases based on host, environmental, and behavioral characteristics of the transmitters. We found that transmission was most common from Registered First Nations potential transmitters who resided in reserve communities. Recent infection was slightly higher in contacts with reportedly lower exposure to the transmitter, but active disease was most notable in the infected close contacts. A significant proportion of transmission events suggested extensive geographic mobility between the residence of transmitters and their contacts, which poses a considerable challenge to jurisdictionally contain TB transmission. Upon further investigation, the likelihood of observing a transmission event was significantly greater in transmitters with advanced stages of pulmonary disease and in those that resided in households with poor ventilation. In light of these findings, it is clear that provincial TB control programs must strive to prioritize the demographic, geographic, clinical, and social determinants in the Indigenous people of the Prairies. Collaborative effort of healthcare workers, educators, and community leaders is required to disrupt the chain of transmission in this population group, whilst acknowledging traditional Indigenous values.
Language
English
DOI
doi:10.7939/R3R49GH9B
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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