The Geography of Tuberculosis

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Juli 2008



While the overall annual incidence of tuberculosis (TB) on the Island of Montreal has been stable at 10 per 100,000 in recent years, incidence varies tremendously by country of birth and by neighbourhood. It is not clear how much of this variation reflects population distribution, and how much reflects localized risk factors and/or local transmission. Precise mapping and spatial statistical analysis allowed for the identification of two types of TB concentrations: hotspots - raw concentrations of cases, and high-incidence zones - where TB incidence significantly exceeds the rate expected. The high-incidence zones were not fully explained by known risk factors for TB, such as high population densities or low incomes, when aggregated at the census tract level. The results were linked with Mycobacterium tuberculosis genotyping data to search for evidence of recent transmission. We found that there is substantial aggregation of TB in Montreal, beyond the concentration of the foreign-born as a group, and evidence of recent transmission contributing to high incidence was uncovered in one area of the city.


Ian J. Haase, MSc. McGill University, Montreal, QC, 2003-2005.
EAN: 9783836465625
ISBN: 3836465620
Untertitel: Using GIS to Explore Transmission in Montreal. Paperback. Sprache: Englisch.
Verlag: VDM Verlag
Erscheinungsdatum: Juli 2008
Seitenanzahl: 124 Seiten
Format: kartoniert
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