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Tuberculosis notifications in Australia, 2008 and 2009
Christina Barry1, Justin Waring, Richard Stapledon
1Vaccine Preventable Diseases Surveillance Section, Department of Health and Ageing, Canberra, Australian Capital Territory. christina.barry AT health.gov.au
Communicable Diseases Intelligence Quarterly Report
|November 17, 2012
Summary
Tuberculosis (TB) incidence in Australia remained stable between 2008-2009, primarily affecting the overseas-born population. High treatment success rates were observed, emphasizing the need for continued surveillance.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
Background:
- Tuberculosis (TB) surveillance in Australia relies on the National Notifiable Diseases Surveillance System.
- TB incidence rates in Australia have remained relatively stable since 1986.
Purpose of the Study:
- To analyze tuberculosis (TB) notifications and incidence in Australia for 2008 and 2009.
- To identify high-risk populations and risk factors for TB infection.
- To assess TB treatment outcomes and healthcare worker infections.
Main Methods:
- Analysis of tuberculosis (TB) notification data from the National Notifiable Diseases Surveillance System for 2008 and 2009.
- Calculation of TB incidence rates per 100,000 population, stratified by birthplace and Indigenous status.
- Review of reported risk factors, healthcare worker cases, and treatment outcomes.
Main Results:
- TB incidence was 5.6/100,000 in 2008 and 6.0/100,000 in 2009.
- Over 85% of cases occurred in the overseas-born population; incidence was significantly higher in this group compared to Australian-born populations.
- Household contact and residence in high-risk countries were key risk factors. Healthcare worker TB cases decreased, with no reported transmission in healthcare settings. Treatment success exceeded 95%.
Conclusions:
- Tuberculosis (TB) in Australia disproportionately affects the overseas-born population, with stable incidence rates.
- Effective TB control relies on robust surveillance, identification of at-risk groups, and early detection of trend reversals.
- High treatment success rates indicate effective management strategies.
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