Tuberculosis

Epidemiology of tuberculosis in an urban slum of Dhaka City, Bangladesh

BACKGROUND: The objectives of this study were to assess the tuberculosis (TB) burden and to provide an insight into the type of circulating M. tuberculosis species in urban slums of Bangladesh. We also aimed to test the feasibility of a larger …

Predictive value of the tuberculin skin test among newly arriving immigrants

RATIONALE: Screening and treating newly arriving immigrants for latent tuberculosis infection (LTBI) in low-incidence countries could be promising to reduce the tuberculosis incidence among this population. The effectiveness of screening with the …

Role of the QuantiFERON(R)-TB Gold In-Tube assay in screening new immigrants for tuberculosis infection

This study aimed to estimate the risk of progression to active tuberculosis (TB) within 2 yrs after entry in newly arriving immigrants who were screened with the QuantiFERON®-TB Gold In-Tube assay (QFT-GIT; Cellestis, Carnegie, Australia). In a …

Earlier initiation of antiretroviral therapy, increased tuberculosis case finding and reduced mortality in a setting of improved HIV care: a retrospective cohort study

OBJECTIVES High early mortality after antiretroviral therapy (ART) initiation in resource-limited settings is associated with low baseline CD4 cell counts and a high burden of opportunistic infections. Our large urban HIV clinic in Uganda has made …

Prevalence of smear-positive tuberculosis in persons aged ≥ 15 years in Bangladesh: results from a national survey, 2007-2009

The aim of this study was to determine the nationwide prevalence of smear-positive tuberculosis (TB) in Bangladesh. A multi-stage cluster survey of a random sample of persons aged ≥ 15 years was included in 40 clusters (20 urban, 20 rural). Two …

Multidrug resistance among new tuberculosis cases: detecting local variation through lot quality-assurance sampling

BACKGROUND: Current methodology for multidrug-resistant tuberculosis (MDR TB) surveys endorsed by the World Health Organization provides estimates of MDR TB prevalence among new cases at the national level. On the aggregate, local variation in the …

Adherence by Dutch public health nurses to the national guidelines for tuberculosis contact investigation

OBJECTIVES: To assess whether public health nurses adhered to Dutch guidelines for tuberculosis contact investigations and to explore which factors influenced the process of identifying contacts, prioritizing contacts for testing and scaling up a …

Adherence to tuberculosis therapy among patients receiving home-based directly observed treatment: evidence from the United Republic of Tanzania

BACKGROUND: Non-adherence to tuberculosis (TB) treatment is the leading contributor to the selection of drug-resistant strains of Mycobacterium tuberculosis and subsequent treatment failure. Tanzania introduced a TB Patient Centred Treatment (PCT) …

Comparison of macroscopic and microscopic assessment of specimens collected for the diagnosis of tuberculosis

Diagnosis of tuberculosis in a field setting depends on the quality of specimens submitted for smearmicroscopy. Macroscopic assessment (sputum or saliva) of the specimen for suitability for further examination is common practice in routine care. We …

Socio economic position in TB prevalence and access to services: results from a population prevalence survey and a facility-based survey in Bangladesh

BACKGROUND: In Bangladesh DOTS has been provided free of charge since 1993, yet information on access to TB services by different population group is not well documented. The objective of this study was to assess and compare the socio economic …