Related Experiment Video
Updated: May 25, 2026
A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)
Published on: April 30, 2020
Intervention to increase detection of childhood tuberculosis in Bangladesh
K Talukder1, M A H Salim, I Jerin
1Centre for Woman and Child Health, Savar, Dhaka, Bangladesh. khurshidtalukder@yahoo.co.uk
Insights
Simple guidelines and training significantly improved child tuberculosis (TB) detection in Bangladesh, tripling case detection rates at intervention sites. This approach enhances pediatric TB case finding within existing national programs.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
- Pediatric Medicine
Background:
- Childhood tuberculosis (TB) remains significantly under-diagnosed in Bangladesh, with an estimated 21,000 cases missed annually.
- Current control programs focus primarily on sputum smear-positive TB, neglecting pediatric TB diagnosis due to a lack of specific training and guidelines.
Purpose of the Study:
- To enhance child TB detection rates by improving healthcare worker awareness and training.
- To integrate pediatric TB case detection strategies into existing microscopy centers supported by the Damien Foundation (DF) in Bangladesh.
Main Methods:
- A cluster-randomised trial involving 36 microscopy centers (18 intervention, 18 control).
- Intervention sites received child TB guidelines, training, and logistics support.
- Paediatric TB suspect referral and case detection data were collected at baseline and during the intervention.
Main Results:
- Child TB case detection increased at both intervention and control sites.
- Intervention centers showed a threefold increase in detection (3.8% to 12%), compared to a less than twofold increase in control centers (4.3% to 7%).
- The difference in improvement between intervention and control groups was statistically significant (P = 0.001).
Conclusions:
- Basic training, guidelines, and logistical support for child TB case detection can be effectively integrated into national TB control programs.
- This integrated approach can significantly improve service delivery for children in TB-endemic regions.
Background:
Despite a well-functioning adult tuberculosis (TB) control programme, children with TB remain grossly under-detected in Bangladesh. It is conservatively estimated that annually around 21,000 children with TB go undetected, due to an almost exclusive focus on sputum smear-positive TB and the absence of training or guidelines in paediatric TB.
Objective:
To double child TB detection by increasing general awareness and training of health care workers at microscopy centres supported by the Damien Foundation (DF) Bangladesh.
Methods:
A cluster-randomised trial was carried out with provision of child TB guidelines, training and logistics support to staff of 18 microscopy centres, while 18 non-adjacent microscopy centres continued their usual practice and served as controls. Paediatric data on TB suspect referral and case detection were collected at baseline and during the intervention at both control and intervention sites.
Results:
Child TB case detection increased in both intervention and control microscopy centres, but the increase was three times the baseline in the intervention centres (from 3.8% to 12%) in comparison to less than double the baseline in the control centres (from 4.3% to 7%, P = 0.001).
Conclusion:
Simple guidelines and training on child TB case detection, together with basic logistics support, can be integrated into the existing National TB Control Programme and improve service delivery to children in TB-endemic areas.
Related Concept Videos
01:26Pulmonary Tuberculosis IV
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
01:28Pulmonary Tuberculosis V
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the progression...
01:31Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
01:29Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
01:28Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...